Hi there,
Very new to HPTuners, but I have been studying a bunch online.
My new motor is not idling very well - I just need to get it to idle long enough to get it all the way warmed up, system check, one drive down the street, then get it on the trailer to the dyno and a professional tuner. Right now it idles for 5-10 seconds, then starts to hunt the idle rpm and swings up/down in increasing moves, can't correct, then stalls out.
I have added some idle spark advance, targeted idle airflow >20g/s, I do have appropriate injector data provided by FIC.
My current HPT file is attached. I do have a WB, but haven't got the math channel with Lambda error to work yet. Idling Lambda is in the 0.80-0.85 range which is low.
Thank you in advance!
Build:
Gen III PCM
4" Stroker LS3 - 416
Comp Cams 54-460-11 = .621/.624 235/243 113LSA
243 heads
Fast 92mm cathedral port intake
Silver LS2 TB
Lingenfelter conversion box.