ECU Pinouts

[Dave_GSR1.8]

So, I've been doing some reading and gathering of info to install my LC2 wideband (and if truth be known also plucking up enough courage to risk the ECU!) and just need to know, are the ECU pinouts on a CC GSR the same as on an EVO 1 to 3?

I ask because they are described here (sourced from evocoupe.net. so I have my suspicions as to who might have put it together originally!);

http://www.ecmtuning.com/images/forums/EVO1-3ECUPinout.pdf

for the EVO1 to 3 and if they are the same, I reckon I can have a go at it, especially with this latest video from Jafromobile

https://www.youtube.com/watch?v=_P9rKpQ-oH0

Leaves nothing out!

 

[khubner1]

can confirm they're the same your looking for pin 56 a white wire.

tbh don't wire up the simulated narrow band they're not nearly the same as the factory unit. yes wire in the wideband and gauge but unless your putting the wide-band in the same hole as the narrow came out. not advised if you read your instructions for the sensor placement there is no reason to run the simulated narrow band as your primary o2 signal

 

[4piknup]

I have ecmlink faking the narrowband. I dont find any issues with it. I know thats not quite what you are saying tho k.

 

[3VOLUTIONIST]

Admittedly I've only driven 16Km with the simulated narrowband, but the AFR's look fine to me, 14.7 at idle. And mines in the frontpipe just before the flex joint, not in the dump like Jafros.

As for the Evo/GSR pinouts. Theres a couple of differences (that I found on my harness).

Pin 9 - Alarm W/L
Pin 34 - Octane adjust
Pin 41 - Turbo W/L
Pin 54 - Exhaust Temp +
Pin 57 Exhaust temp -

None of those were on my GSR harness. I had the pin for the Turbo W/L, however it just terminated at the plug behind the passenger side dash speaker.

 

[khubner1]

Yeah none of those are in the gsr harness but all the ones in there that are used are the same. I wasnt imply8ng there wiuld be any issues running simulated narrowband. Just that unless your ditching stock narrowband there not realy any point. Wide bands operate differently to narow bands so the simulated narow signal will Never be the same. Not saying thats a bad thing but just something to consider.

If you want to great go for it you shouldnt encounter any issues my only point is unless your getting rid of the factory narrow you dont realy "need" to i beleive the only reason they have it is for people who ditch the factory one for ease of install

 

[3VOLUTIONIST]

Yeah none of those are in the gsr harness but all the ones in there that are used are the same. I wasnt imply8ng there wiuld be any issues running simulated narrowband. Just that unless your ditching stock narrowband there not realy any point. Wide bands operate differently to narow bands so the simulated narow signal will Never be the same. Not saying thats a bad thing but just something to consider.

If you want to great go for it you shouldnt encounter any issues my only point is unless your getting rid of the factory narrow you dont realy "need" to i beleive the only reason they have it is for people who ditch the factory one for ease of install

Yeh theres no need unless youre running some kind of custom dump without the narrowband bung

 

[Dave_GSR1.8]

Yeah, I'm dumping the narrowband because its stuffed, so getting a new one, plus welding in another bung, is starting to be a stretch too far... budget is very broken and I still need decent tyres!

 

[4piknup]

Might as well get the wideband. No point in putting a new nb and then getting a wb to run as well. Put the money you save from the nb towards the wb.
you just have more things to go wrong. And what if you have a nb and a wb and the wb says the nb is playing up? You will just run the simulated nb signal across- same as 3VOLUTIONIST just did.
i dont think a 22 yo ecu is going to pick a nb from a nb simulation.
Maybe we can have a screen shot comparing the 2 in the other topic or this one. That will be interesting....

 

[Dave_GSR1.8]

Hi Jack

Yeah, already got the WB, its been sitting in the cuboard for months, too much other stuff going on so not yet fitted. Current NB is still installed, had heaps of probs trying to tune as I could not get closed loop so gave up and just copied ECM link EVO1 fuel and timing tables into my ECM Lite v3 and that seemed to make it good enough till I could sort WB out.

Don't want to spend money getting another bung fitted, and fixing/replacing NB, spent too much on this car already, so NB simulation it will be...

 

[3VOLUTIONIST]

Drove 70km today (with the NB simulation), it didn't miss a beat, and my current ECU is 7-10 years newer than any GSR ECU too. So I doubt you'll have any issues

 

[4piknup]

I concur ^

Ecmlink does it internally on the ecu and logs it easily. Its a no brainer- fit the wb. Super friendly (well my mtx-l is)
you probably couldnt get closed loop to work as it was too far lean or rich to kick in

 

[Dave_GSR1.8]

Re "you probably couldnt get closed loop to work as it was too far lean or rich to kick in'

You may well be right! It was tuned at a good place in Ringwood prior to new MAF, injectors and fuel pump upgrade; after I fitted these it took alot of mucking around to get it drivable 'cause I could not get closed loop etc etc etc

Did it myself as could not afford another tune, plus I decided I really needed to learn a bit about this sort of stuff.