Stalling when starting

[jake1711]

I have a 2.0L TFSI 2008 leon fr. I have changed the crank sensor, heat flow sensor, map sensor, battery and throttle body. The car starts after a few cranks, as soon as it starts the engine stalls. If you keep your foot on the accelerator the car revs to roughly 3.5k and then tries to cut out.

The only other thing I can thinks of is high pressure fuel pump.

 

[mty12345]

Immobilisor OK?

 

[jake1711]

Not too sure. Plugged an OBD reader in, didn't come up with any codes to do with the immobiliser.

 

[mty12345]

Not too sure. Plugged an OBD reader in, didn't come up with any codes to do with the immobiliser.

Hmm, only reason i ask is immo usually allows the car to start but then cut out immediately. The fact it takes a while to crank though, maybe not. Have you checked for any big air leaks in the intake etc

 

[jake1711]

I've checked all the intake manifold plus air Intake. They seem all OK. Turbo and charge pipes are all OK too. I did notice today there was a very faint bit of smoke coming from the PCV valve but it's intermittent.

 

[mty12345]

I've checked all the intake manifold plus air Intake. They seem all OK. Turbo and charge pipes are all OK too. I did notice today there was a very faint bit of smoke coming from the PCV valve but it's intermittent.

Yeah not sure on that one the mate. Even if the PCV was broken it should still run. Maybe you're right about the fuel pressure.