wippy748s
17-01-2009, 02:34 PM
Hi i wonder if anyone can help me , my dad has a 2000 1.9tdi and we are having massive problems with it , it starting surging when at wot especially in high gears , it felt like the turbo was boosting up and then backing off , boosting up and backing off , this got gradually worse , i thought that perhaps it could be the maf so i swapped his with the one off my car and it still did the same , i also tried his on my car and mine ran fine, i have checked the overboost sensor and its fine, am i right in saying that if the car overboosts then it will go in to saftey mode till it is switched off and started again?.
The car has now lost lots of power , it no longer surges but just feels like you are driving with the hand brake on, its really bad, what is even odder if that if you accelorate flat out from the off and through each gear it is much better but if you are just cruzing and put your foot down not much happens, is it a possibility that the break light switch is faulty or the throttle pedal potentiometer? if so how yould you go about checking it, i am technically minded . we have had a diagnostics check and no fault codes were found.
sorry this is so long but any help would be much appreciated
The car has now lost lots of power , it no longer surges but just feels like you are driving with the hand brake on, its really bad, what is even odder if that if you accelorate flat out from the off and through each gear it is much better but if you are just cruzing and put your foot down not much happens, is it a possibility that the break light switch is faulty or the throttle pedal potentiometer? if so how yould you go about checking it, i am technically minded . we have had a diagnostics check and no fault codes were found.
sorry this is so long but any help would be much appreciated