A4 Quattro 2.0 TDi throttle problems...
Discussion
Hi guys, 2007 Audi A4 Quattro Avant B7 2.0TDi.Manual transmission
Car starts fine and ticks over. Throttle does nothing (apart from taking it from tickover to about 1050 RPM). Once engine is warmed up – the revs can be built up by moving accelerator pedal very slowly – once it reaches say 1500 rpm ish it accelerates OK - although sluggish throttle response - once it hits tickover again, its a slow to build it up again exercise.
Car had a new turbo 2-3 K ago. It has DPF and EGR deleted (and has been mapped as well - all prior to my ownership). I have tried / fitted New throttle body, new throttle pedal complete, new MAF, fuel pump changed....No Fault codes showing at all (a couple of specialist garages have looked at it and they are baffled...)...car was running fine before problem occurred after a morning start. Disconnecting the MAF makes it run / rev better but have changed it anyway so its not a faulty MAF. No untoward noises etc.
Any ideas as I am at a complete loss now... HELP!!
Car starts fine and ticks over. Throttle does nothing (apart from taking it from tickover to about 1050 RPM). Once engine is warmed up – the revs can be built up by moving accelerator pedal very slowly – once it reaches say 1500 rpm ish it accelerates OK - although sluggish throttle response - once it hits tickover again, its a slow to build it up again exercise.
Car had a new turbo 2-3 K ago. It has DPF and EGR deleted (and has been mapped as well - all prior to my ownership). I have tried / fitted New throttle body, new throttle pedal complete, new MAF, fuel pump changed....No Fault codes showing at all (a couple of specialist garages have looked at it and they are baffled...)...car was running fine before problem occurred after a morning start. Disconnecting the MAF makes it run / rev better but have changed it anyway so its not a faulty MAF. No untoward noises etc.
Any ideas as I am at a complete loss now... HELP!!
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