early evo ecu swap

[evonut270]

iv finally got my finger out and done the pin swaps for the evo 8(260) ecu and the USDM evo 8 ecu into an evo 1 2 or 3.if your afraid of wiring DO NOT attempt this you have been warned :p

i will add pics later on.

for this conversion you will need;

OBD connector(get one from any 96+ mitsi at a breakers)
12 pin ECU plug
some tools(socket set,terminal remover,precision screwdriver set)


PLEASE READ THE NOTE BELOW!!!!

NOTE evo 3 plug no 51-72 becomes 71-92 when converted to 8 260 ecu
please use ecu pinouts for both
i accept no responsibility for fried ecus or cars.

wiring changes are FROM e3 to 8 260

remove pins 3+16 (rad fans)+ pin 11 (Fan relay)
remove pin 67(idle switch)
remove pin 9 (alarm W/L)
remove pin 34(octane adj)

pin 40(wastegate sol)to pin 11

pin 8(fuel pump relay)to pin 22

pin 71(ground) join with wire at pin 26(ground)

pin 33(fuel press sol)to pin 3

pin 22(A/C comp relay)join with wire at pin 8(a/c comp relay)

add pin and wire to pin 79(flash wire)

pins 3+16(rad fans)to wire at pin 32

pin 11(fan relay) to pin 8(ac comp relay)


Next is the obd2 wiring.put it in an accessable place like next to the ecu


OBD2 socket wiring

Wiring FROM the OBD socket to the ecu loom

pins 4+5(ground)I used ground at pin 13

pin 7 (diagnostics) to pin 62

pin 16(+12v)i used pin 12(12v switched supply)

[evonut270]

also here are the differences between the USDM evo 8 and the EDM 8 (260)

USDM 8 pinouts different to e8 260

USDM --------------------------------260

31+32(A/C) ----------------------32+34(A/C)
40(sens grnd/cam crank IAT) ----------not used
55(Evap sol valve) --------------------55(i/c spray relay)
57(I/C spray) ------------------------ not used
61(fuel tank diff press) --------------- not used
73(manifold diff press sens) ----------- not used
74(sub fuel level sens) ----------------not used
77(fuel temp sensor) ----------------- not used
not used ----------------------------87(ayc/acd signal input)

[AllanL]

pin 7 (diagnostics) to pin 62

wow! this is great! :>

but isn't it pin 42 for the diag? pin 62 is ign sw?

thanks

[evonut270]

wow! this is great! :>

but isn't it pin 42 for the diag? pin 62 is ign sw?

thanks
pin 42+43 is diag on the evo 3 pinouts not the evo 8 and there not used in this conversion.also the evo 1 2 and 3 does not have an obd socket.:smile:

[evo4life]

12 pin ECU plug

i need to know what i connect here and were i connect it to please ,

thanks

[starkers]

Well done John :thumbup1: sounds easy enough :lol:

[evonut270]

Well done John :thumbup1: sounds easy enough :lol:its easier than it seems :lol:

[Racedude]

its easier than it seems :lol:


Yup another thank from me too John. Sorry if my numerous messages to you seemed impatient. Its painful to see my car immobile haha.

[AllanL]

hello!

can i use this ECU from a JDM GSR 8 for the swap?

http://f19batchimg.auctions.yahoo.co.jp/users/0/2/9/8/neko_kick2004-imgbatch_1251458692/600x450-2009082800127.jpg

assuming i get i write, will the engine start and run as it is?

anything on the engine that needs to be replaced, like injectors, etc?

thank you in advance.

[evonut270]

its not as easy with a jdm 8 ecu as it has the 3 plug arrangement and the plugs are different to the early evos.the 8 260(EDM) and the 8 (USDM) have the 4 plug slots of which the early evo plugs will clip into.also its worth to note that this conversion can apply to evo 5+6 ecu swaps into an early.wiring is slightly different but still as easy.

[AllanL]

thanks!

how about this one from a 5?

http://f09batchimg.auctions.yahoo.co.jp/users/7/8/3/0/swmp7377-imgbatch_1259305883/400x600-2009112700222.jpg

[evonut270]

a 5 ecu is fine.

[AllanL]

is the swap straighforward? i mean, just add one socket, relocate the wires (3 to fit the 5), start and go?

[AllanL]

when i get this done, what tuning parts would i need to:
read?
log?
flash?

thank you

[evonut270]

is the swap straighforward? i mean, just add one socket, relocate the wires (3 to fit the 5), start and go?you will need the small 12 pin plug.only 1 wire goes to it.a few changes to the wiring and adding in the obd socket abd a pin and wire for pin 79.you will need an op2.0 cable to read/write the 5 ecu

[AllanL]

you will need the small 12 pin plug.only 1 wire goes to it.a few changes to the wiring and adding in the obd socket abd a pin and wire for pin 79.you will need an op2.0 cable to read/write the 5 ecu

i'll follow what's written on this .xls file from MLR.
this 1 wire you mentioned for the 12pin socket is for the tach signal?
only the op2.0 is needed? how about ecuflash and evoscan?
thanks.

[evonut270]

i'll follow what's written on this .xls file from MLR.
this 1 wire you mentioned for the 12pin socket is for the tach signal?
only the op2.0 is needed? how about ecuflash and evoscan?
thanks.you dont need to fit the tacho wire as it causes the rev counter to jump about @ idle.the 1 wire is for the obd2 socket.

[AllanL]

huh? so where would the tach signal come from?

[evonut270]

huh? so where would the tach signal come from?cam/crank sensor. the ecu still registers rpm with the wire removed.iv done a few logs and all works fine.

[AllanL]

i see, will give it a try.

thanks for your help.

[AllanL]

you will need the small 12 pin plug.only 1 wire goes to it.a few changes to the wiring and adding in the obd socket abd a pin and wire for pin 79.you will need an op2.0 cable to read/write the 5 ecu

hi!
which among these will i need to get?
http://www.tactrix.com/index.php?cPath=24_43
and then use ecuflash to read/flash?
thank you.

[evonut270]

You will need the openport 2.0 cable with the mitsi flash connector. Download ecuflash before you connect the cable. Also download evoscan

[AllanL]

op2 + cable + ecuflash - read/write?
evoscan - datalog?
but still need lc-1 right?
thanks for being patient...

[evonut270]

op2 + cable + ecuflash - read/write?
evoscan - datalog?
but still need lc-1 right?
thanks for being patient...yes all that is needed.there are a few choices of wideband but the lc-1 is widely used and has more support for evoscan

[western]

whats the most notable,benefit of the 8 to 3 ecu swap? is a tunned 8 ecu better to work with, than a tunned 3 ecu? are the results after tunning better with one or the other,,,or is it just the convenience ? im new to this so im trying to get my head right

[evonut270]

whats the most notable,benefit of the 8 to 3 ecu swap? is a tunned 8 ecu better to work with, than a tunned 3 ecu? are the results after tunning better with one or the other,,,or is it just the convenience ? im new to this so im trying to get my head rightunless you use the moates ostrich with the stock ecu then you need to change the chip kind of like superchips where its a generic map and not optimised for each car. the joy with the newer ecu is it makes tuning the early cars easier as they can be ecutekd by a dealer if your not into self tuning.

[western]

ok,,,so let me get this clear,, the benefit is that with the evo 8 ecu, you can just flash and go,,,while with the evo 3 ecu, you have to use the ostrich to do the tunning then burn to a chip,,and if changes are made,,burn another chip again...but there is no difference in the tunning potential of each ecu( both are able to make the same power, with the same level of efficiency )

[AllanL]

evonut, i read in evo-m that there's an issue with the knock sensor. did you have to change to the later evo knock sensor?
thanks.

[evonut270]

evonut, i read in evo-m that there's an issue with the knock sensor. did you have to change to the later evo knock sensor?
thanks.
i have not done any logs as yet but it seems to behave normally.i have an evo 8 sensor just in case.

[AllanL]

some there say their cars ran smoother. is it true?

[evonut270]

mine seems to run smoother with the ecu change but i couldnt get it on full boost as i think my actuator has seized up and was spiking to 2bar

[AllanL]

oh, so it's true. i can also use a us evo8 ecu right and flash an RA rom?

[evonut270]

oh, so it's true. i can also use a us evo8 ecu right and flash an RA rom?
yes you can.pinouts are slightly different though.

[AllanL]

which are different in the pin outs, compared to your post in the first page?

[evonut270]

which are different in the pin outs, compared to your post in the first page?read post number 2 in this thread it compares the USDM 8 to the EDM 8 260

[AllanL]

also here are the differences between the USDM evo 8 and the EDM 8 (260)

USDM 8 pinouts different to e8 260

USDM --------------------------------260

31+32(A/C) ----------------------32+34(A/C)
40(sens grnd/cam crank IAT) ----------not used
55(Evap sol valve) --------------------55(i/c spray relay)
57(I/C spray) ------------------------ not used
61(fuel tank diff press) --------------- not used
73(manifold diff press sens) ----------- not used
74(sub fuel level sens) ----------------not used
77(fuel temp sensor) ----------------- not used
not used ----------------------------87(ayc/acd signal input)

so only the pins for the A/C will be used right?

pin 73 can be used later for SD?

[evonut270]

so only the pins for the A/C will be used right?

pin 73 can be used later for SD?id assume so :smile:

[AllanL]

also here are the differences between the USDM evo 8 and the EDM 8 (260)

USDM 8 pinouts different to e8 260

USDM --------------------------------260

31+32(A/C) ----------------------32+34(A/C)


hey evonut,

RRE's diagram shows pins 31 & 32 for the AC fans
http://www.roadraceengineering.com/evo/tech/EVO-ecuwiring.htm

The EvoECU wiki has pin 31 as N/C, while pins 32 and 34 for the AC fans, which is the same as the 260.
http://evoecu.logic.net/wiki/USDM_VIII_ECU_Pinout#C-121

Which is the correct version?

Also how did you wire up pin 33 (ALTERNATOR G) and pin 41 (ALTERNATOR FR) from the E3 harness?

Thanks.

[evonut270]

I'll look into the wiring differences later when I'm home but I think RREs pinouts are correct I'll double check And make sure,as for the alt g/fr no there not connected as the e3 loom does not have additional wiring for it.a fault will show in the memory but I'd does not throw a CEL

[AllanL]

by the way, using a usdm e8 ecu...does it matter what year the ecu was? are there any differences? or are all us evo8 ecus the same?

also i was able to download a usdm e8 factory manual for the ecu, will just follow the wiring indicated.

thanks

[evonut270]

shouldnt matter what year it is.

[evo3racer]

hey guys im looking at doing this but cant find an evo 8 ecu other then jdm is there any problems using an evo 5 ecu ?

[evonut270]

hey guys im looking at doing this but cant find an evo 8 ecu other then jdm is there any problems using an evo 5 ecu ?no problems using an evo 5 ecu.pin changes will be slightly different.

[evo3racer]

anyone no the right pin changes for it and anyone worked on an rvr 4g63 ?

[evonut270]

anyone no the right pin changes for it and anyone worked on an rvr 4g63 ?if you can provide pinouts for an RVR ill sort the pin changes

[evo3racer]

sorry just thought id mention the car was originally an gsr lancer with a 4g93 now fitted with an rvr 4g63 couple things ive noticed is a difference in crank cam sensor and a couple other plugs i cant find homes for but cannot locate anywere a wiring diagram nor can i find one for my original wiring

[evonut270]

sorry just thought id mention the car was originally an gsr lancer with a 4g93 now fitted with an rvr 4g63 couple things ive noticed is a difference in crank cam sensor and a couple other plugs i cant find homes for but cannot locate anywere a wiring diagram nor can i find one for my original wiring
as far as i know i think the ecus from the 4g93 and the 4g63 were plug and play as for the loom i wouldnt have thought there would be a difference in CAS .what other wires can you not find homes for

[evo3racer]

ill take some photos tomorrow ive gotten plugs for crank angle sensor and cam angle sensor on my new engine but can only find the cam sensor on my harness and in the same grouping as the cam/crank sensors is a single wire with a round plug black with a red trace coming off of the air con compressor but cant find were that goes

[evo3racer]

http://s90.photobucket.com/albums/k280/Evo3Racer/
heres some photos of the plugs i dont know and some photos of the harness from the rvr hope it helps im not sure how you will go but thanks

[todd]

what year is the rvr ??

[evo3racer]

dont know year i just bought my car with the conversion half done i know its an n23w super sports gear was an auto

[AllanL]

it will be the same as it goes to the ecu.
the rvr engine has separate cam and crank sensor, while the early evos have only one, and in series with the intake cam.
if you look closer, it will join somewhere after the cam sensor and will go to the same pins on the ecu connectors.
there are some us sites discussing this, just google '2G in a 1G DSM'.

[evo3racer]

hey allan thanks for the info think ive gotten that problem solved kinda maybe just got aaalllllll the other hassles just want to confirm before i start changing pins on my wiring that the evo 5 has the same pinouts as an evo 8?

[AllanL]

hey evo3racer! go on over to the lancer register for what you're looking for. it's a sticky in the ecu mapping forum. it's got the pin outs for the evoI thru X.

[a4ndy]

can anyone tell me where i will get the 12 pin ECU plug that is required for this please

[evonut270]

can anyone tell me where i will get the 12 pin ECU plug that is required for this pleasePM "grants" on the MLR thats where i got mine for this conversion

[a4ndy]

PM "grants" on the MLR thats where i got mine for this conversion

thanks mate appreciated

[evonut270]

thanks mate appreciated

no probs:smile:

[AllanL]

by the way, how do i know which rom is in the ECU? can it be seen physically? o ecuflash is needed?
thanks

[evonut270]

You need ecuflash to read the rom

[AllanL]

thanks evonut
anyway, all US Evo8 ECU can be reflashed using Tephra regardless of Evo8 ECU/Car model year right?
oh and by the way, would we have to bother about immobiliser stuff when swapping over an 8 ecu into a 3?

[evonut270]

thanks evonut
anyway, all US Evo8 ECU can be reflashed using Tephra regardless of Evo8 ECU/Car model year right?
oh and by the way, would we have to bother about immobiliser stuff when swapping over an 8 ecu into a 3?
yes all USDM ecus will work with tephra mods as far as i know.the immobiliser will have to be disabled in the ecu before it will start.best starting off with a stock rom and get the car running then change over to a tephra rom.

[AllanL]

thanks evonut.
by stock ROM, you mean the early evo rom or the stock e8 rom?

[evonut270]

thanks evonut.
by stock ROM, you mean the early evo rom or the stock e8 rom?

Stock e8 rom. You will need to modify your airflow scalings as the early maf reads different to the newer ones. Send me your rom and I'll mod it for you.

[AllanL]

wiring changes are FROM e3 to 8 260

remove pins 3+16 (rad fans)+ pin 11 (Fan relay)

pin 22(A/C comp relay)join with wire at pin 8(a/c comp relay)

pins 3+16(rad fans)to wire at pin 32

pin 11(fan relay) to pin 8(ac comp relay)



hey evonut, just clarifications...

1) pins 3+16(rad fans)to wire at pin 32
--> OK, join to AC condenser fan HI, but the rad fans will only be in HI speed always, as compared to HI/LO on the early evo?

2) pin 22(A/C comp relay)join with wire at pin 8(a/c comp relay)
pin 11(fan relay) to pin 8(ac comp relay)
--> pin 22 and pin 11 will both go to pin 8?

3) I/C spray involves 3 pins, pin 44, 57 and 91. pin 57 is the signal for relay coil energisation. pin 44 is manual mode spray, pin 91 is auto mode spray. do i need to have the e8 switch for I/C spray to function? or is it possible to just use the auto mode by tapping pin 91 to GND? if pin 91 is to GND, under what engine conditions will the I/C spray work?
or is it possible to leave pin 91 open, and pin 57 is controlled by the stock early evo I/C spray switch?

4) how about the MAP sensor at pin 73?

thanks again

[evonut270]

yes it should run hi-speed for the fans. iv not bothered to look into wiring up the Auto-ICS button as it was not something i considered doing.

[AllanL]

is pin 73 <MAP sensor> left blank, and later on used if in case going to SD?
thanks.

[evonut270]

is pin 73 <MAP sensor> left blank, and later on used if in case going to SD?
thanks.

Yes :smile:

[AllanL]

thanks!

so early evo pins 11 and 22 will join at evo8 pin 22?

[Azmanjim]

thanks!

so early evo pins 11 and 22 will join at evo8 pin 22?

can I just bump this question as Im having trouble understanding it too. Other than that Iv done a guide for the evo 1 ecu to 7 ecu if anyone wants it

Aaron

[AllanL]

Aaron, that guide would be great!

[AllanL]

Stock e8 rom. You will need to modify your airflow scalings as the early maf reads different to the newer ones. Send me your rom and I'll mod it for you.


here it is...
but if you would teach how to change, so i can change it myself, and learn in the process...
and by the way, OP2.0 can be used with ECUFlash to flash the US Evo8 ECU right? read on evoscan.com that the OP1.3 is preferred...
thank you.

[evonut270]

Guys read post 1 for the wiring changes. Evo 8 pin 22 is for the fuel pump relay

[AllanL]

thanks!

so early evo pins 11 and 22 will join at evo8 pin 22?

my bad!

it should have been written as:

early evo pins 11 and 22 will join at evo8 pin 8?

sorry...:blushing:

[Azmanjim]

Basically why is the relay running off the Ac comp pump relay output? Is there not a fan relay switched pin on the Evo 8 ecu?

[Azmanjim]

I'll post the guide in here when I find out the last answer to the pin question and have tested to make it work. 7 ecu is easier as there's not as many changes

[evonut270]

Basically why is the relay running off the Ac comp pump relay output? Is there not a fan relay switched pin on the Evo 8 ecu?

No Evo 7 and 8 have a separate fan speed control

[Azmanjim]

Right pretty sure pin 21 controls the rad fan relay on an Evo 8 but does it via pulse width modulation. Hopefully that will still work though

[Azmanjim]

So how comes the rad fan relay goes to the a/c relay then? Is there some kind of trick involved?

[Azmanjim]

Any chance someone has wiring diagrams I could have a look at?

Cheers

Aaron

[AllanL]

which do you need, the III's or the VIII's?

[Azmanjim]

haha well I have a 1 with a 7 ecu but viii will do if u have them

cheers

[AllanL]

well, here's both diagrams (early Evo and EvoVIII), but concerning just the fan controls...

the early Evo's is from a Lancer/Libero manual for the 4G93 DOHC Turbo, the same diagrams as for the early Evo and same age RVRs.

need your advice...

[Azmanjim]

How annoying. The fan is controlled by a separate controller. The ecu just sends out a signal to tell the controller how fast to spin the fan. You could just have a manual fan switch however which would be pretty easy

[AllanL]

you mean the radiator fan speed control for the evo8?

[Azmanjim]

Right, it makes no odds to me as I don't have a/c anymore but by joining the two fan pins to 32 (condensor fan relay earth hi) that will control the fans when coolant temp gets high. At least It should by normal theory.

I'm not sure it actually matters where pin 11 goes. I'd say it would go at pin 45 and old 45 would join with 8 but I'm having trouble working out the Japanese on the Evo 3 diagram, what with not understanding Japanese and all. I'll have another go later when iv Slept

[AllanL]

hey, what in the early Evo diagram would you need translating?
would you want me to translate all the Japanese in the early Evo diagram, and re-send?
anyway, here you go...
hope this can make it clearer...

[evonut270]

How annoying. The fan is controlled by a separate controller. The ecu just sends out a signal to tell the controller how fast to spin the fan. You could just have a manual fan switch however which would be pretty easy

Yeah it is annoying. I have added a manual fan switch to mine but I'm going to add in a separate water temp switch into the top hose.

[AllanL]

Yeah it is annoying. I have added a manual fan switch to mine but I'm going to add in a separate water temp switch into the top hose.

this was also my idea.
the wiring I was planning on adding is similar to the Galant E3x's/1G DSM, which have a coolant temp switch at the lower part of the radiator.
cut the top hose and add a pipe with a bung for the coolant temp switch.

[Azmanjim]

Or just wire it the same as an e8 and get the little controller box

[evonut270]

this was also my idea.
the wiring I was planning on adding is similar to the Galant E3x's/1G DSM, which have a coolant temp switch at the lower part of the radiator.
cut the top hose and add a pipe with a bung for the coolant temp switch.

Yeah just add the switch in and wire up both your fans to it. Only 2 wires you need to run from the switch to the fans

[Azmanjim]

Would be a lot better if the Evo had a thermostatic switch already. Bloody jap cars!

[Wrecked]

You don't need to wire a switch in. Just use the Evo 8 ECU A/C fan pinouts. That's how I did mine when I did it a few years ago and it has never been a problem. It is also how it works fro the 4,5,6 conversions.

[AllanL]

Would be a lot better if the Evo had a thermostatic switch already. Bloody jap cars!

the early evos had hi and low speed controls for both the radiator and condenser fans.

based on the diagrams for the 4~8, the radiator fans did not have 2-speed radiator fan control.

:confused1:

[Wrecked]

All Evo 1-6 have 2-speed control for radiator and condneser fans. The 7 up have 2 speed control for the condenser fan and variable speed control for the radiator fan.

From the 6 up they seperated the radiator and condenser fan circuits.

All you have to do is connect the early evo hi circuit to the 7/8 ECU condenser hi pin and the early evo low circuit to the 7/8 ECU condenser low pin.

[AllanL]

All Evo 1-6 have 2-speed control for radiator and condneser fans. The 7 up have 2 speed control for the condenser fan and variable speed control for the radiator fan.

From the 6 up they seperated the radiator and condenser fan circuits.

All you have to do is connect the early evo hi circuit to the 7/8 ECU condenser hi pin and the early evo low circuit to the 7/8 ECU condenser low pin.

great!

early evo pin --> evo 8 pin

pin 3 (rad fan hi) --> pin 32 (cond fan hi)
pin 16 (rad fan lo) --> pin 34 (cond fan lo)

thanks a lot.

[2l60-1]

Why not go 1g ecu/harness and run SD through ds-map? I'm curious about this setup

[neilm]

hi
a mate wants to do this mod to his evo3 and use a evo7 ecu
he asked me what he needed
what do you need parts wise
odb2 plug
flash plug

all so what rom and xml do you use etc

will the car need a full remap after fitting or will it run ok

im not doing the work on the car but a my help out just for fun :smile:

thanks all

[evo_gerard]

hi guys, any advice on the evo7 ecu in an evo3? which wires need to switched? what mods needs to be changed within the rom to get it working ie. injector scaling, maf size??? etc.

thanks!

[sirnixalot]

Evonut270 has a map that i used. A friend of mine has transferred it over to a Tephra 5.10 i think.

I used a USDM Evo 8 ecu so i am not sure about the evo 7 pin out. Though the pins mentioned earlier on in this thread should work.

You will need an ODB2 plug from any car and you will need to run an existing wire to your ODB1 port.

Also do not even attempt this without a wide band that can log.

I am happy to email you the rom that will get you running though i am not responsible if you blow up because you didn't take the time to verify AFR's and knock.
PM me your email address.

[evo_gerard]

Evonut270 has a map that i used. A friend of mine has transferred it over to a Tephra 5.10 i think.

I used a USDM Evo 8 ecu so i am not sure about the evo 7 pin out. Though the pins mentioned earlier on in this thread should work.

You will need an ODB2 plug from any car and you will need to run an existing wire to your ODB1 port.

Also do not even attempt this without a wide band that can log.

I am happy to email you the rom that will get you running though i am not responsible if you blow up because you didn't take the time to verify AFR's and knock.
PM me your email address.

lol i'll sent the pm. don't worry i wouldn't hold u responsible if anything happens

[evo_gerard]

what goes into the 12 pin socket?

[nikon]

pin 11(fan relay) to pin 8(ac comp relay)

not needed

[stunt]

pin 11(fan relay) to pin 8(ac comp relay)

not needed

why ?

[SimonC]

Hi Guys, need a bit of help please, I'm fitting an AEM Evo8 Standalone Ecu into an Evo 3.

The Air-con has been removed, cooling fan is on a manual switch, Boost control by a Blitz EBC, AEM Map and Temperature sensors, O2 sensing from the Analog output of a LM1 Wideband.

Using Evonut's guide and the pinout diagrams from Evo3, Evo8 and the AEM this is what I've come up with so far :-

Using Evo3 Ecu numbers I'm dissconnecting the following wires:-

3 Radiator fan
6 EGR solenoid
9 Evap canistor solenoid
11 Fan relay A/C
16 Radiator fan
19 MAF reset
22 A/C Compressor relay
24 Rear screen
33 Fuel pressure solenoid
34 Octane adjust/timing adust
35 O2 sensor
40 Wastegate solenoid
41 Turbo icon
42 and 43 Diagnostics
45 A/C compressor relay
54 and 57 Exhaust temp sensor
65 Maf pressure signal
67 Idle switch
70 Volume air flow sensor

and connecting Fuel pump relay to pin 22

Firstly, does that look right and have I missed anything ?

Also pin 31 on Evo3, 58 on Evo8, Tacho, do I need this output for revcounter to work ?

And finally pin 37 on Evo3, Power steering pressure switch, what is it's function and do I need it ?

Any help would be much appreciated, Simon.

[scottycsx]

so has someone got a guide to fitting a evo 7 ecu to a 1/2/3 ??

need one asap and a base map on 560s

[miller]

Is there anyone who can supply and fit all this?

[evonut270]

Is there anyone who can supply and fit all this?anyone who is competant at wiring can do this. parts shouldnt be a problem either. where are you based?

[miller]

Hucknall in Notts.....

[miller]

Bump, as Im possibly looking at a larger turbo or rebuilt standard one which will mean remap time!

[j0ey2069]

Thanks for all the info in this thread lads and to evonut270 for the original post. All the info you really need to perform this wire swap is here.

I've now got my Evo3 GSR running on an Evo6 ECU, all wired in myself (saved myself about €400).

I'm after making a ECU conversion harness as I thought it would be way handier than actually swapping the original ECU plug pins around. Then if things didn't work when I was testing all I had to do was unplug the harness and plug my original ECU back in and the car would be ok.

I salvaged the ECU plugs from a 96+ Mitsi at a scrapyard (for nothing).

Here's where got all the needed info on the needed plugs, pins and connectors and I used New United Race Tech to purchase all the parts (links to the pages on their website are on the following page);
http://evoecu.logic.net/wiki/Plugs,_Pins,_and_Connectors

Also here's a zip file with every Evo's ECU pinouts in PDFs;
http://dl.dropbox.com/u/8230342/Evo%20ECU%20Pinouts.zip

[todd]

whos charging 400e to swap em

[j0ey2069]

I retract my previous statement about saving €400. I actually calculated it and I saved €150.

I have a tendency to exaggerate...

[todd]

I retract my previous statement about saving €400. I actually calculated it and I saved €150.

I have a tendency to exaggerate...

:lol:

[ant1]

First of all thank you to the OP for this thread, great help :-)

One question, this has all been done, setup and mapped but I have a small problem with the rev counter. It works fine until you back off the throttle (in gear) than just drops to zero, and when you accelerate it works again.

Have I missed something out?

[todd]

some ive done had a prob with the tacho bouncing up and down only at idle you snipping the white wire goin to igniter cured it cant remember which pin it is at ecu .

[Evo1boy]

some ive done had a prob with the tacho bouncing up and down only at idle you snipping the white wire goin to igniter cured it cant remember which pin it is at ecu .

pin 31 on the evo 1-3 ecu tacho sig?

[evonut270]

Just remove the wire for the tacho at the ecu. I had the same problem with mine

[todd]

pin 31 on the evo 1-3 ecu tacho sig?

thats the one :smile:

[ant1]

Cheers fellas will have a go tomorrow.

[foxbat]

Using a JDM E7 ECU, still with E3 MAF & injectors, I decided to go with mods 5.10 90550001. I used the the MAF/injectors sizes & scaling found in the evonut swap rom (attached image). AFR readings were excessively rich (9ish) after 4400rpm 140load, something is wrong with either or both MAF/injectors scaling. I increased injector scaling to 532cc but still got those 9ish AFR readings! Now, I'm tempted to swap MAF & use a 6's MAF.

Any suggestions?

[Lee5]

Looks like the maf scaling is way out to me !!!

[foxbat]

Is it too high or too low? Again, the figures are from Evonut's rom & seem to have worked for others doing early evo ecu swap! What about the injectors numbers, do they look right? I might swap MAF today & start over with stock tables.


Yes, I just swapped MAF, installing E6 MAF, AFR turned out perfectly fine, as Lee mentioned those MAF numbers seem way off! I wonder if anyone else has good E3 MAF scaling figures for future reference

[evonut270]

the Maf scaling i used on mine was used as a base to get started. yes it was rich midrange but nothing tweeking the fuel map didnt sort out. my settings were only supposed to be used as a base to get started out which it does.the car runs fine off boost in closed loop which you will probably find most do. i didnt mess with the MAF scaling long enough to perfect one.

[foxbat]

In my case the base map I started with had already leaner fuel table than stock, but still AFR came out excessively rich, so, I wasn't comfortable with the injectors/maf scaling. Injector numbers seemed fine, so a proper MAF scaling could be preformed, but I found it more convenient to simply install a used E6 MAF.