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thought you said it was doing it before the PCV was installed?
He did say that. Must have meant to say something else. Anyway, glad it's fixed. I was suspecting something in the idle adjustment of the PCV anyway. At least that is where I would have looked first. ( knowing that the PCV created the issue).
Yeah, seemed like it was doing it before the pcv. Which made me not to think of the tune at first. And the current tune already had -15 from 0-1250. So I changed it to -25.
Looks like it might have been the tune. Added negative values from 500-1200 at 0% throttle in the PCV.
That was going to be my first suggestion. With most PCV maps with the AutoTune module (closed-loop, WB sensors) the entire 0% column of the Target AFR table is set to zero (DJ's recommendation), which tells AT to run open-loop. Thus if you have an overly lean or rich value at idle it will run crappy, as the O2 sensors won't be affecting the mix. Been there, done that.
Yeah, seemed like it was doing it before the pcv. Which made me not to think of the tune at first. And the current tune already had -15 from 0-1250. So I changed it to -25.
Going -25 is a bit much, but many including me have run -15 in the 0% column, but not at idle. If you get decel pop set like that just add more fuel a little at a time 'til it goes away, as those areas will normally only be encountered upon deceleration.
