Been an issue on my car for a while now and I still haven’t gotten to the bottom of it. When the engine is cold it runs fine (albeit sometimes an idle slightly higher than I think it should be), but once it’s up to temperature it really starts to stink and run rich. Quite often if I dip the clutch if I’m coasting to a stop at some traffic lights or something similar the revs will drop to around 100-200rpm then bounce back up to ~800rpm then drop down again and so on and so forth a few more times until it finally stables itself out. When it does idle at the right level it idles a little rough too.
I’ve cleaned the IACV, changed the spark plugs, had a look at the MAF but to no avail. I’m wondering, since 99% of the problem is when the car is at proper operating temperature, that it could be the coolant temperature sensor? Any easy way to test this aside from unplugging it?
Any help appreciated, cheers.
I’ve cleaned the IACV, changed the spark plugs, had a look at the MAF but to no avail. I’m wondering, since 99% of the problem is when the car is at proper operating temperature, that it could be the coolant temperature sensor? Any easy way to test this aside from unplugging it?
Any help appreciated, cheers.