My car won't start from cold without applying a little bit a throttle. It used to start with "no feet" at all, but now it won't....
When it catches, it doesn't really want to tick over for the first few seconds, and then the cold start seems to kick in and lift the revs to 1500rpm until it warms up a bit.
IACV was changed last year as full of grot, and its never really be spot on since. Tried resetting the ECU.
I can hear the IACV 'home' itself when the engine is turned off. It also makes a high pitch whine for a few minutes too (the old IACV did this also).
Un plugging the IACV seems to make no difference to the starting procedure, so I figure it's getting a duff signal from another sensor?
Where do I look next? Coolant temperature sensor, I assume the ECU uses this to figure out if the engine is cold and wind out the IACV accordingly...?
Cheers
2003 K-Series EU3 1.8 Standard alloy plenum