As above guys I am now at a loss to the problem on my GTI !!!

 

Idling at 500rpm then if you build the revs up slowly it's fine right up to 6500rpm but the minute you give it any beans it Coughs Splutters and tries to Backfire !!!

 

What I have changed so far

 

Plugs

Leads

Coilpack

Fuel Rail

Injectors

Fuel Pressure Solenoid

Crankshaft Sensor

Camshaft Sensor

MAF

Throttle Position Sensor

Throttle Body

Cat

ECU

Air temperature Sensor

Little Resistor / Amplifier thing on Coilpack Bracket

 

Any Ideas would be greatly appreciated as I am completely stumped now ,thanks Mark

 

 

Have you tested anything or have you just thrown parts at the car?

 

Sounds to me like a fuel problem and fuel pressure check would have been the first test. It seem's to me it could be a possible fuel pump issue. A Fuel Pressure test that a local garage should be able to perform will establish this as the zetec has a valve on the fuel rail, making this really easy. Less than half an hours work so budget on about £20 for the diagnosis

Have you tested anything or have you just thrown parts at the car?

 

Sounds to me like a fuel problem and fuel pressure check would have been the first test. It seem's to me it could be a possible fuel pump issue. A Fuel Pressure test that a local garage should be able to perform will establish this as the zetec has a valve on the fuel rail, making this really easy. Less than half an hours work so budget on about £20 for the diagnosis

I have just thrown parts at it so far mate But they all came from a perfectly running car so all the parts are good ,I have to say that I always thought if the fuel pump was working then it was working right or it just did nothing !!!