This morning I woke up, car ran fine. Then I flashed a tune I was working on, basically, moved the PE delay to 4000k and then added alittle more fuel to the HIGH RPM 5000k TPS100% area. Went out for a test drive and the car drove fine, came to a perfect stop at the first 2 stop signs. The car went into PE and then I press in the clutch at the stop, it dies... AFR at this time was 12.6. OK, started it back up, and it dies again at the next stop, then pulling into my driveway..dies. I start it back up to idle.... it has a rough time idling.... I noticed from the the log that the MAP values were flucuating from 30 to 75 while idling.... i was like OH NO!!! I thought I messed up my MAP sensor or blew an intake manifold gasket and/or had a vaccuum leak somewhere... So I flashed a stock tune just to rule that out (to rule out any VE/ spark table modifications i did)... yup same thing.... rough idle, wouldnt idle without pressing the gas
Finally, after thinking way too complicated for an hour or so... flashing this and that... I disconnected my battery and mowed the grass... connected it back and the car started fine on the stock tune and test tune. I drove it about 10 miles, works fine...
My question, was this a fluke? or is there an underlying problem? I have been having connection issues with HP tuners and Bill on their website has been very helpful.....
I know computers are computers... I work on them for a living... and they need a reset from time to time.... or did moving the PE delay maybe cause this?
Thanks for your alls help!
Did you raise your VE offset % by chance? That might have affected the rough idle.
That's my input.
Admiral Jedi wrote:Did you raise your VE offset % by chance? That might have affected the rough idle.
That's my input.
Nah its at 20% right now... It use to be at 30% at one time before I recalibrated my WB O2... I just checked that though when I read that just to make sure ... BTW if you post on ecotec forums, TY!! for the cam guide!! it helped out alot!! since I used the kentmore cam tool.
