hunting

[bigblokey0]

my audi a6 1.8 t is hunting in idle when first turned on any ideas it does settle down after a while but still it shouldnt be doing it

 

[mach1tl]

Remove and clean the throttle body as it will be badly coked. Alos if fitted check the vacuum pipes to the secondary air valve as it can split.

 

[Verne]

New to the world of Audi, but had similar problem on my Honda that was caused by a dodgy intake temperature sensor (I'm assuming Audis have them too ). Cleaning didn't work, but replacing with a good one solved completely

HTH

 

[bigblokey0]

intake temp sensor has been mentioned b4 but ive not a clue where its located

 

[mach1tl]

Its built into the air mass meter but do the other checks I suggested and it should be better.