Question about 1994 Volkswagen Passat
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Posted on Jan 02, 2017
SOURCE: VW Golf 1 - Idle problem
exactly same problem on mine m8.....a good service fixed the problem.....new air filter, oil, oil filter, spark plugs, distributor cap, rotor. when i took the air filter out and looked at the air flo pipes they were clogged up with white gunk....means the engine wasnt breathing rite. i cleaned it with break cleaning fluid. i dnt no which 1 of these solved the problem....but my guess wud be the pipes
Posted on Mar 04, 2009
these cars are fitted with a fly by wire accelerator pedal that is controlled electronically by the cars computer it is possible that there is a computer problem or the throttle body ( air intake system )or accelerator pedal is playing up.
it is highly possible that the car is doing exactly what you say it is i recommend you take it back to VW and demand that they take a proper look at it you might have to leve it with them for a couple of days and get a service advisor to drive it home so as they can see the problem ocure.
regardles the cars computer should of thrown a code declaring a fault in the system witch should give the tecs some were to start looking.
good luck with this problem if you have any outher questions let me no
Posted on Dec 19, 2008
the hunting can be caused by leaks in the intake system.
these can usually be heard with the engine running & bonnet open and a hissing sound especially when blipping the throttle.
also check the crankcase breather hoses which go from the oil filler cap to just behind the coil pack, they are prone to cracking.
re. the acceleration, ther could be a problem with the throttle control unit.this is the unit the accellerator cable is connected to.
a scan with a diagnostic tool will tell you if that is the problem.
Posted on Aug 28, 2009
this has to do with your secondary air injection incorrect flow. start looking for a vacuum leak especially around the air duct from the mass air flow sensor to the throttle body.
Posted on Jan 25, 2010
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