From the first motor since back when i went to sd and deleted the maf ive had the same problem. The idle will just jump to 2500rpm and hang for almost a minute in park and drive.ryan big motor 91oct stock ve tuning throttle cracker (1).hptryan drive 1.hpl ive got the ve pretty dialed in but every time i drive it it seems to want changes in the lower areas. stock trucks and cars ive tuned recently they have been fine no issues and then i even started over by the book and copied a stock 5.3 over into the sd file. please help idk what to do at this point. only thing i see is erratic idle is more steady when i first start the car but will still jump 2500rpm.i have sprayed the whole top with starter fluid checking for vacuum leaks and none.
i'm currently using the
gforce 92mm throttle body
3" intercooler
twin 72mm on 3 turbos
sheet metal intake
799 heads
custom comp cam
5.3 bored to 3.9
forged flat top weisco pistons
Callie rods
stock crank
i appreciate any help thanks
Ryan Gallegos