Hi,
I have been trying to resolve a long standing issue with rough running on my 1.9tdi,atd PD engine golf.
The car lacks initial acceleration when pushed, in addition on a light throttle around 2200rpm it feels like a missfire/stutter.
The car has no fault codes, has had a new turbo, new N75 valve, new injector loom, the vacuum system is good, the egr is all good.
The injectors are within +/- 0.5 at idle, torsion value is 1 and hasn,t changed.
If i connect a pressure gauge in the fuel line from the fuel filter to the tandem pump, at idle i get 7.5 to 8psi,(engine running) if I then rev the engine to 1800pm, the gauge fluctuates between 5-8psi really quickly, is this normal or does this indicate a problem with the tandem pump (the intank pump has been replaced...with no improvement)
Can anybody confirm to me that this is a normal condition or something not quite right !.
Thanks
I have been trying to resolve a long standing issue with rough running on my 1.9tdi,atd PD engine golf.
The car lacks initial acceleration when pushed, in addition on a light throttle around 2200rpm it feels like a missfire/stutter.
The car has no fault codes, has had a new turbo, new N75 valve, new injector loom, the vacuum system is good, the egr is all good.
The injectors are within +/- 0.5 at idle, torsion value is 1 and hasn,t changed.
If i connect a pressure gauge in the fuel line from the fuel filter to the tandem pump, at idle i get 7.5 to 8psi,(engine running) if I then rev the engine to 1800pm, the gauge fluctuates between 5-8psi really quickly, is this normal or does this indicate a problem with the tandem pump (the intank pump has been replaced...with no improvement)
Can anybody confirm to me that this is a normal condition or something not quite right !.
Thanks