I have a 2014 yukon denali 6.2 (same as 2013)
It has a VVT stage 1 cam from Gwatney 212/224 .563 lift 113+8 lc
Kooks headers & exhaust. Stock heads just cleaned up a bit. It's my tow vehicle.
I've been working on a tune that a local shop did not finish due to a misfire (bad coil pack) at the time for a while now.
Somewhere I've changed the idle transition between P/R/N/D
It will flare up 200 rpms sometimes... Then other times when going to D from R or P/N is stumbles and dies (mostly when at op temps)
Can someone look at what I may have done wrong...????
Thank You
Ok.. I'll try that ... I was wondering if my base idle airflow is ok... I've got it set to run best in PARK... but
over the last month I've tweaked quite a few things