Hunting Revs

[BRUN]

ive had this problem in the past and i cant remember how i fixed it, if i ever did

basically, i start the car and everything is fine, then after about 30secs-1minute roughly the revs will start hunting around, dropping down then up, then down then up, etc, until it cant stabilise it and it cuts out

normally this only ever happens from cold starts, but it has occasionally done this when the car is warmed up, like last night id driven for an hour, parked up for half an hour, then on start up it did the huntin thing

it doesnt always do this by the way, tonight it did it, so i switched off, back on again and it did it again, third time lucky and throttle was very responsive so off i went

when it does this, if i give it some gas the revs go up a little then jus drop back down low and i have to give it more revs to stop it stalling

the ISCV is about 2 years old and my Lambda is about a year old at most

Leads, plugs, dizzi cap and rotor arm should be in good condition

[Danlp6]

usually hunting idle is lambda, mine was.

[BRUN]

thats what i was thinking

bit annoyed as its not that old, it might actually have some kind of warranty ill have to find out

[Danlp6]

was it genuine?

[BRUN]

NGK Direct Fit

[BRUN]

anyone else

gunner ?

would like my fears confirmed by a few people before i go and buy one

[Dan_mk1]

Sounds like lambda, tried cleaning the iscv first tho? Just clean it with a bit of carb cleaner...

[VIPERONE]

how low and high does it hunt ie does it drop to 700rpm and increase to over 1000rpm, and when you drive it does your car kangaroo

[BRUN]

if it does go over 1k its not much over, its usually between 1k on the gauge and IIRC 500 (doesnt have a 0 does it ? cant remember lol)

yes if i set off driving the car does jerk around until this phase clears which takes a minute or so

[BRUN]

^^^^^^^^