I just got my b18c gsr running again, i put ctr valve springs, spoon sports cams, buddy club cam gears, an-r header, aem hybrid series intake, vafc2(nothing messed with on settings yet), i had my head ported and polished, the head mating surface machined( a little over for a compression change), and a valve job, arp head studs, apexi world sport catback, skunk2 manifold, and about 10 more misc bolt ons. I started it, and im not throwing any codes, but the motor idles at 2,000, and then once it warms up, it goes from 800 to 2,000, 800 to 2,000 back forth, im not throwing a code, i have checked my vaccum lines, i might be wrong on a vaccum line, but i dont know, im pretty sure im right, what do you guys think this could be. PLEASE HELP!!!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6hatch &raquo;</TD></TR><TR><TD CLASS="quote">I just got my b18c gsr running again, i put ctr valve springs, spoon sports cams, buddy club cam gears, an-r header, aem hybrid series intake, vafc2(nothing messed with on settings yet), i had my head ported and polished, the head mating surface machined( a little over for a compression change), and a valve job, arp head studs, apexi world sport catback, skunk2 manifold, and about 10 more misc bolt ons. I started it, and im not throwing any codes, but the motor idles at 2,000, and then once it warms up, it goes from 800 to 2,000, 800 to 2,000 back forth, im not throwing a code, i have checked my vaccum lines, i might be wrong on a vaccum line, but i dont know, im pretty sure im right, what do you guys think this could be. PLEASE HELP!!!!!</TD></TR></TABLE>

you check the tps voltage to make sure it shows .45 volts closed? What ecu you running? Are you 100% sure the valve adjustment is correct as well?

 

I am running the stock p72 ecu right now, with a non-set or tuned vafc2, and yes, i am 99.9% sure, there could always be that chance that yeah, they arent right, but im am really sure