When my 3door is cold, I mean really cold as in not run for a day, I have some probs.

When I start and leave the car standing it runs good. If I drive away afer 2 mins I have no problems.

When I start the car and drive away immediatly the revs are going up and down (800-1800) when I press the clutch. Today it happend that the engine felt out when I wanted to turn of the driveway, the powersteering asked too much from the low revs. It all goes away after a few minutes of driving and the car just runs fine.


Anway ideas where I have to look at?

 

Unplug ISCV and then start car see if still the same, if so the ISCV is faulty, remove and try cleaning with light oil and reassemble.

Martin.

 

Thanks for the awnser, will look at it tomorrow

 

Unplugged the cable to the ISCV and tried to start the car but it won't run. Cleaned the plug and the sensor and started the car afterwards. Car starts as it always does but as I drive and press the clutch the revs are falling down and automaticly climbing up to about 2k. If I drive for 2 or 3 minutes everything is fine.

Any other ideas?

 

Check your ECT then this is the blue sensor at the back left hand side (inlet side) of the cylinder head. One thing ECT provides is enrichment when cold.


Martin

 

It would be worth changing the ECT if over a few years old anyway, then check the CO to make sure it is at whatever it should be for the make of chip in the car.
The mere fact that your idle goes up shows the iscv is WORKING, this is classic of a lean mixture when cold.
tabetha

 

Car is 100% standard, so no chip or tuning what so ever What would the correct CO be then, 1 to 1.5%?

To be clear, the ECT sensor is the blue coolant sensor right?

 

Yes the ECT is the blue sensor, this has a major influence on mixture.
It is at rear of head on inlet side, a bit awkward to get to but defo worth changing, if more than about 3 years old.
I am not sure what the std CO is on a std car, think ford did quote 1.5%, but they were a lot better/happier richer than this, most around 2% - 2.5%, so just tweak up a bit, you'll find it goes btter too.
Matt Lewis 01548 484488 sells the sensors, I would change the air temp as well if original or old.
tabetha