Having some tuning trouble :/

[98gst14b]

I'm having a little difficulty tuning my car, first with WOT being way too rich -as noted in my other post:
http://www.dsmtuners.com/forums/tun...log-tell-me-what-you-think.html#post151773901

So I decided to start over, I read and read through the knowledge base and decided to start from idle again. I have a couple logs below of my idling. I am having a lot of trouble getting the STFT's to cycle around 0% while keeping around a 14.7 AF/R. I read the basic fuel settings page and set my FIC 850's to -47% 330 Deadtime like it says, but the car wont fire, theres not enough fuel. So I jack the deadtime up to 1000 and it idles fine around 0% just real rich about 12.5afr. I also tried disableing my idle air clamp to try and simplify things. I am also trying to get my estafr to match my wideband but cant figure out how, all at the same time trying to keep the airflowperrev at .28g!!! Im so frustrated what am I doing wrong guys??

 

[twdorris]

Ignore the 0.28 g/rev target, please. You've got bigger fish to fry and you're going to drive yourself insane trying to line so many things up all at once. Just get the car running OK first and go from there. Also, consider posting on the ECMLink user's support forum. You'll get even more help there and more eyes on the problem.

The first thing I noticed in that second log (the one with 1000 usecs deadtime adjustment) is that your front O2 sensor was reading REALLY choppy. That usually means the injectors are not well matched at low pulsewidth. I don't know the history of the car, though, so I can't tell you much about that. Please post a new thread on our support forum with a detailed listing of what's on the car now and what's changed (everything) since the last time it ran perfectly fine.

If you need an account created, e-mail me offline.

[email protected]

There's definitely something screwy here and it's going to take some more eyes on it I think.

Thomas Dorris
ECMTuning, Inc.

 

[98gst14b]

Thanks for your reply, Thomas. I posted a thread on ecmtuning, here is the link, thanks again.

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