idle problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

markyboi · 09-19-2007, 08:14 PM

hi guys, i've run out of options here... ive been researching for days now and trying all kinds of stuff... nothing seems to work..

I have a jumpy idle... when cold start its fine... but once i drive it then, the idle will jump from 1000 to 2500 then drop again. also when i turn on my ac the idle drops 500 rpms (from 1000 to 500) i had a CEL on and it threw out a code 14 which is the IACV..... i cleaned my IACV and that took the CEL off.. and checked for all kinds of vacuum leak.. and found none... it ran good for 2 days after i cleaned the iacv but now its back. i had a crack on my radiator and so i though that could be it... i replaced that too and my idle still jumps.. any thoughts???

09-19-2007, 08:14 PM	#1
markyboi Zilvia FREAK! Join Date: Feb 2006 Location: california Posts: 1,105 Trader Rating: (0) Feedback Score: 0 reviews	idle problem hi guys, i've run out of options here... ive been researching for days now and trying all kinds of stuff... nothing seems to work.. I have a jumpy idle... when cold start its fine... but once i drive it then, the idle will jump from 1000 to 2500 then drop again. also when i turn on my ac the idle drops 500 rpms (from 1000 to 500) i had a CEL on and it threw out a code 14 which is the IACV..... i cleaned my IACV and that took the CEL off.. and checked for all kinds of vacuum leak.. and found none... it ran good for 2 days after i cleaned the iacv but now its back. i had a crack on my radiator and so i though that could be it... i replaced that too and my idle still jumps.. any thoughts???