MK2 Stalling when cold

[dubvrs]

Now my mk2 gti 8v is up and running i have the following problems.

Revs take a while to settle so replaced isv and seams a lot better now.

When cold it takes a while to start (like no fuel) then sometimes starts and dies a couple of times then once it's started to get warm it's ok. somtimes it will start after a bit then run for a minute or so then die. Checked all the vacum pipes and ok.. Ordered a new blue temp sensor but checked and cleaned the connections for the time being.

Once warm the car is fine but takes a bit to start (5 secs or so) then is ok and does not stall. Could one of the fuel pumps be on it's way out.

I have put in new plugs, ht leads, dizzy cap & rotor arm and runs much better but still stalls.

Any ideas.

[GTI_16V]

Hi,

I had exactly the same problem last week with my 16v.  I sorted the problem by changing the fuel filter and plugs.  It made a huge difference!!

[marcogolfo]

hmmmm i now have this problem but it arose from changing the ht leads plugs and fuel filter

[dubvrs]

Got a new fuel filter today but dam bolt is rusted so need to drill it out tomorrow. Fitted temp switch but still the same.

Hopefully the fuel filter will sort it.

[Mr Blue]

adjusted the idle screw. See if that works first

[dubvrs]

Well was looking into it today and the fuel pumps seam to just stop then the car stall so need to find out why they are stopping 

Only 2 things it car realy be is the crappy laserline imobaliser (getting replaced with a cat 2 friday) or the fuel pump relay.

Is the fuel pump ment to prime everytime you turn the ignition on as mine seams to be a bit hit and miss.

[Gambit]

Is the fuel pump ment to prime everytime you turn the ignition on as mine seams to be a bit hit and miss.

yes it is, and id suspect your dodgy alarm causing it to be hit n miss

if the fuel pump doesnt prime the car wont start

[dubvrs]

Everything previous to the alarm is ok so hopefully when it gets ripped out tomorrow and the cat 2 installed it should be ok.

[rubjonny]

Could be the fuel pump relay has had it have you got another one you can swap in?  Take a look at the wiring behind the fusebox too if you haven't already, you never know what previous owners have done back there.  I found the main ignition live feed from the fusebox had been cut, had thinner gauge wire spliced in for an imobiliser, then at a later date some NUMPTY took out the imobiliser, twisted the 2 ends together and wrapped some tape round it 

[dubvrs]

I tested the circuit post fuel pump relay at the fuse and was ok. Cat 2 is now fitted and no more problems.

Laserline is now in the bin after i attacked it with a screwdriver