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Originally Posted by tpepmeie
Really? I think at least a couple people have done this. As I have said before, I have the whole code commented in a working assembly file. I have this for each production year. The effort was in the hundreds of hours.
Todd
93 #411
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Yeah, I misspoke, I know that it had been done but I should have said it wasn't widely available as some of the other ECM code is.
In that you have the in depth knowledge, here is one of my dilemmas that has pushed me into the wonderful world of ECM programing:
I have a PIA surge when I'm coasting down in neutral or clutch in. As I come to a stop, the idle drops very low and sometimes actually stalls the engine. From what I have gathered, it may be related to the IAC follower portion of the code, however, there are no parameters for that in either TunerCat or TunerPro.
I played with the DFCO parameters but ultimately simply disabled it entirely to get rid of the popping in the exhaust (and a nasty surge on decel).
IIRC, it started happening sometime after installing my headers. I can't be absolutely sure though. I also have a Fidenza flywheel so the rotating inertia is obviously less than it was stock.
This is just the beginning of my unraveling of the inner workings of the code. I'm sure I will have even more questions....