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I'm not sure where to find that, there is tons of crappy info out there.



Hm, that makes sense. Tahnk you.



Wow that's very useful, thank you!

Hi! So, I was studying the pinout of my ECM, and it looks something like this:
141130
141131
As you can see, there are two similar set of pins. One set controls ignition for coils 2 and 3 and the...

I'm not really working on anything, I'm just looking at the pinout and trying to make sense of it. It's a Chevrolet Aveo T250.

Hi! So, I was studying the pinout of my ECM, and it looks something like this:
141069
141070
As you can see, there are two similar set of pins. One set controls ignition for coils 2 and 3 and the...

Ok guys, thanks for all the replies. It's been very informative.

I have one last, kind of unrelated, question, maybe you can answer this: How often does the ECU read the O2 value? Does it read it...

Sure but the effect is the same no? The only difference is a few miliseconds between the O2 sees it and it actually changes the STFT?

So, essentially all you are doing is avoiding that delay. Not...

Thanks for the reply guys.

What I meant is, the O2 sensor's input controls the STFT, which is essentially the car tuning itself to adjust for more/less air. So, for example, if I put a turbo on a...

I have a theoretical question here, didn't know where to post it.

Why do we bother tuning fuel maps when we could just tune the AFR on the O2 sensor?

Hi. I was wondering if there is any way to tune the stock ECU found in the Aveo T250 1.6l? How can I find out if my ECU can be tuned or I need to get a standalone/FIC for this?