bigmiller

iTrader: (6)

hi guys,

since having my car engine built by TEG and mapped by steve simpson, it has started to hunt for idle, it bounces between about 600rpm and 1300rpm.

i have been looking at archive threads and ppl seem to agree that its an o2 probe or a maf sensor...... would this make the car hunt for idle all the time????
because myn only hunts for idle when its cold...as soon as water temp hits 25 degrees C it idles perfectly at 900rpm....solid as anthing!!!!

anyone have ideas???? or is it still gonna be an o2 or maf????

thanks in advance for ur technical wizardry!!

ian

Lateral Performance

iTrader: (20)

Ask Steve to look at the cold start map, it sounds like it may need modifying.

mikey2

iTrader: (1)

Coolant temp sensor does this too i think, and the idle air solenoid.

barry graham555

check your throttle body somehow the butterfly got bent on 1 we were working at and the b1tch was hunting like a good un. was totally baffled what it was changed just about everything.