kelsey_canard

iTrader: (5)

my truck has been having idling problems since i installed the stall converter. It will drop below the idle rpm and then surge untill it finds it. This happens in park and netural and while driving. I had assumed this was within the throttle follower, since it was doing it in park. I upped the throttle follower and the same thing happened. I have zeroed the cracker and follower, changed the settings up and down independently, tried open loop and sd, tried krambos suggestions, and it still does the same thing.

I'll attach my current tune which has the best results so far. It is in open loop. I have a wideband in the truck at all times and it reads about 15.3 idling. Let me know if i need to attach a log and what I need to include. Thanks guys.

smokeshow

iTrader: (16)

Did you try bringing down base running airflow? Loose converter is going to need less airflow.

kelsey_canard

iTrader: (5)

Yes I did. I only adjusted the cells I was idling at. I think its kind of odd that my base airflow numbers are higher than everyone else's. Like I said it does it in park and neautral. I guess that rules out the stall being the culprit lol.

smokeshow

iTrader: (16)

Well if it surges its going to pull information from other cells. Post up a log if you can.

kelsey_canard

iTrader: (5)

OK I can post a log tomorrow evening. What all needs to be included?

smokeshow

iTrader: (16)

I'd include idle adapt advance, iac position (if cable tb), cylinder airmass, MAF in lb/min, and any proportional and integral airflow pids if you can log that.

kelsey_canard

iTrader: (5)

Haven't got a chance to run any logs here lately. I've been extremely busy. I did notice it has idled the best with zero cracker, follower, and adaptive idle turned off. I'm almost wondering if I have an exhaust leak on one bank. It showed ~6% error on one bank and -10% on the other bank. Will get to the logs this weekend to figure out for sure.