Question about 1998 Volkswagen Jetta

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No acceleration We have had the same issues with glow plugs. However, these have been fixed time and time again. Now we cannot get the car to go over forty. It has no acceleration. I don't believe that it is the injection pump, not getting, heavy smoke. Need some help great car and need to get it back up and running.

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Ok, have you checked all the turbo hoses are connected and have no splits, if all is ok, and the clutch is not slipping it is most likely the air mass sensor. do not buy a pattern part they fail all too quickly, buy a genuine vw part normally approx € 98.00.

Posted on Dec 20, 2008

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I had the same problem with my 98 jetta and i could not understand what was going on in the end i changed the throttle position sensor and the whole was solve i was back to normal and not much was needed to fix this problem but i got the part of my fathers friend's car so i cant tell you how much or were to get one. hope this helps!

Posted on Jan 09, 2009


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Despite what you may read from other comments....The glow plug light is simple a multi function warning light and IS among many othed things in fact used to warn of brake light and brake light switch failure. Therefore it can NOT be treated as glow plug problems only.
I have worked on V.W for many years and have encountered this problem many times. You should get the OBD codes read. This will reveal the exact problem...and there may be more than one
You can contact your V,W agents if you wish and check to see if I am correct.
Best of luck

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