2.0L 16V Cold Running

[ChrisL 18]

Hi,

 

My 2.0L 16V starts fine but does not run very well cold at all. It seams as though the mixture is all wrong when cold, you have to use more accelerator then normal until it warms up.

It has just been serviced with new leads, plugs, air filter.

It's not the end of the world but would like to try and sort it out.

 

Thanks

[bcstudent 0]

As I've found recently, it's almost impossible to fault-find on a constant injection system without access to a fuel pressure test kit. Things to look for on the 2.0 16v, with relation to cold starts, are:

 

Coolant temperature switch on flywheel end of cylinder head.

Differential pressure regulator on the engine side of the fuel distributor.

Air-flow sensor plate potentiometer on the other side of the fuel distributor.

 

Like I said though, in order to be able to properly test the cold-running fuel enrichment you're going to need to test the fuel pressure.

[ChrisL 18]

The problem seems to be getting a bit worse now.

 

For instance when I'm driving down the road at 40mph all seems well, i take my foot off the accelerator as I approach a roundabout (or any obstruction). By this time I've slowed down and if I then put my foot down to accelerate away the car kangaroos a few times and then goes.

 

It's really strange and seems different to other peoples 16V problems. The car never cuts out when Idling.

 

Does anyone have any ideas please

 

Chris

[Deluk 0]

dont ever let off :D

[Deluk 0]

what is it a 1.8 or 2.0? 16v

[bcstudent 0]

It's a 2.0 as mentioned in the first post.

 

Can you confirm that the things listed above are definitely not the problem before you ask for more ideas?