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Evo ECU pin out information

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#82 ·
Re: usdm e8 ecu in an JDM e6 RS

nitz said:
i've pm'd a few of you in this thread, but i'm hoping now to get some dialogue going about the possibility of this working.

usdm e8 pinout diagram (i don't know how correct it is and they dont specify which is hi and lo ac fan).

http://www.evomoto.com/tech_info.php?tPath=3_5&tech_id=19

if i follow Wreckleford's instructions on how to get the e6 fans going on the e7, and assume that pin 31 is ac/hi and pin 32 is ac/low on the e8 then i would:

disconnect the idle switch wire 87
repin wire 34 into 31
repin wire 32 into 34
disconnect 20 and reconnect to 31
disconnect 21 and reconnect to 34

what will need to be done to the following that exist neither on the e6 or e7? someone suggested you might be able reflash an e7 rom over an e8, but i don't know.

75 REAR LAMBDA - which as far as i know requires and combination of rom and hardware fix
43 CLUTCH POS SWITCH INP
46 FUEL LEVEL INP
55 EVAP VENT SOLENOID
57 FMIC SPRAYER
61 FUEL TANK DIFF PRES SNSR
73 MAN DIFF PRESS SNSR
74 SUB FUEL SNSR
77 FUEL TEMP SNSR

side by side pinout comparison

Image
Click to expand...
I think you will have to test pins 31 and 32, to see which is hi and which is low.

Once you know that, 1 of them will need to go to pin 32, and the other to pin 34.

Disconnect 20 and 21 and add them to 32 and 34.

Disconnect 87

Switch 8 and 22 if the car won't start

As for the other connections you mention, you will either have to flash that 8 ecu with a 7 rom, or add the extra wiring and sensors as needed (which i'd imagine would be more agro than it is worth).
 
#83 ·
I'm able to post again, atl east temporarily.

I sent the words below to Nitz, but copied it here because of a lot of talk of cutting wires. You don't need to cut the wires to the ECU. They are easy to remove/switch around.

To de-pin the connector:

- there is a latch on the underside of each conenctor with two indents in it, use a micro screwdriver in the indents to pry it and lift it up from the rest of the connector. It will pop up about 1/2 mm.

Then go to the wire you want to remove and push a sewing pin or safety pin in the end that goes into the ECU. There are two opening for each wire, one where the actual ECU pin plugs into and another one above. Stick the pin in the one above.

If you look in the opening you will see a little tab that holds the wire end in place. The idea is to use the pin to lift the tab up. Once you lift it up, the wire will pull out very easily from the back. If you have to use any force on the wire, you are doing something wrong.
 
#86 ·
grants said:
Small world ;)

Pic's I sent to Russ (cossie 1) :D
Click to expand...
You did and it came in very handy, but I still had to cut 20 and 21 to join them to 32 and 34.

But it was easier removing the pins, then cutting the wires and putting the pins back into place afterwards (gives you a little bit more movement, as space is pretty tight down there).
 
#89 ·
grants said:
At long last :D

Based on an Evo III GSR loom that I've had spread out on the kitchen floor today :blush:
Click to expand...
thanx for this info, we got our 4g93t engine running. basically the evo3 pinouts are same with the gsr ecu, although some trigger wires are not installed in the gsr.

we discovered the unknown wire colored green/black from pin no.41 it is a negative trigger to switch the turbine icon on the 4g93t gsr panel gauge and the 4g63t evo1 when the turbo starts to spool. i think evo 2 and 3 does not have this indicator light since it has a rearfog indicator in its place in the panel gauge.

hope this can be of help to others.

hope i could meet people here who has a 4G92 MIVEC engine. and share some inputs and share the pinouts of the ecu. mine is working fine but maybe i could learn some more from others.

thanx again and good day to all.
 
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#90 ·
grants said:
Evo 6 - Six - VI
Click to expand...
Hi! I have bought a AVC-R actuator valve controller and shall connect the wires from it with some wires that goes to the ECU, it is a VI TME.

In the AVC-R "book" it stands that I shall look at the "M3-a" scheme, it looks like your, do you know if pin 58-"tacho" is the same as RPM and pin 84-"tps" is the same as throttle?

Best regards
Hans
 
#92 ·
REV_HARD said:
thanx for this info, we got our 4g93t engine running. basically the evo3 pinouts are same with the gsr ecu, although some trigger wires are not installed in the gsr.

we discovered the unknown wire colored green/black from pin no.41 it is a negative trigger to switch the turbine icon on the 4g93t gsr panel gauge and the 4g63t evo1 when the turbo starts to spool. i think evo 2 and 3 does not have this indicator light since it has a rearfog indicator in its place in the panel gauge.

hope this can be of help to others.

hope i could meet people here who has a 4G92 MIVEC engine. and share some inputs and share the pinouts of the ecu. mine is working fine but maybe i could learn some more from others.

thanx again and good day to all.
Click to expand...
yhpm
 
#95 ·
I installed an evo7 rs ecu on my evo6rs (thank you to everybody gave advice on this forum!) and I noticed that the fans came on if the car is moving on. Did somebody get the same?
 
#96 ·
YZR said:
I installed an evo7 rs ecu on my evo6rs (thank you to everybody gave advice on this forum!) and I noticed that the fans came on if the car is moving on. Did somebody get the same?
Click to expand...
Haven't noticed this. My exhaust is a bit loud not sure if I would notice the fans anyway :mhihi:
I guess it depends on the ROM.
 
#97 ·
Guys- I have a few questions about the Evo VIII harness. I'm trying to set my Evo II up with the Evo VIII ECU and complete the OBDII conversion so we can flash the car.

This question might be answered by owners of 7-9 I'm not sure. There is a second, non OBDII diagnostic port on the CT9A. The scanner has one black wire attaches to the connector. I think that the connector is called C132 but I have to double check.

Does this single wire that comes with the cable run to the ECU? Does it run to gnd?

Also, I need to know ideally how the OBDII port is wired to the ECU. I can go into more depth but I tried what I thought would work (This)

Pin 56 on EVO VIII = Pin 1 on OBDII
Pin 62 on EVO VIII = Pin 7 on OBD II
Pin 13 on EVO VII = GND
Pin 12 on EVO VIII = Power

There are two unoccupied pins still on the OBDII Flash cable. I'm not sure how this white connector comes into play either.

Any help is appreciated.

Alex
 
Discussion starter · #98 ·
What car did the ECU and harness come from? I assume it's a four plug ECU

Connections, from Evo 8 260 (EU spec)

OBDII
1 > ECU 56 LG colour - Also to other "black boxes"!
4 > Ground B
5 > Ground B
7 > ECU 62 O
16 > !2V G - R

DIAGNOSIS
26 > ECU 79 G - W
I guess this is a write enable wire, or similar

HTH

Grant
 

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#100 ·
grants said:
What car did the ECU and harness come from? I assume it's a four plug ECU

Connections, from Evo 8 260 (EU spec)

OBDII
1 > ECU 56 LG colour - Also to other "black boxes"!
4 > Ground B
5 > Ground B
7 > ECU 62 O
16 > !2V G - R

DIAGNOSIS
26 > ECU 79 G - W
I guess this is a write enable wire, or similar

HTH

Grant
Click to expand...
Alex,

This is how I set mine up and it works. By any chance is your battery voltage low?
 
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