I have a 1999 VW golf tdi with intermittent loss of power. The turbo will cut in for a few seconds, then die forcing you to change gear and get a small boost again. The turbo will not boost much past 2200 rpm. The cars computer has been plugged in at the garage and does not show any problems. Various people have said, replace turbo, air mass meter or just simply wash turbo filters in WD40. Can anyone help?
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Your priblem sounds more like the glow plug timer relay than the
exhaust. White smoke after start up is a sign of diesel entering the
exhaust before it has burned completly. This is as a result of the glow
plugs switching off too early, which is usually caused by one or more
faulty glow plugs or a faulty timer.With engine COLD, IGNITION ON...
Check voltage with all 4 plugs connected. You should have a reading of
If there is no power, check in-line fuse on loom coming to plugs.
If power is present, check for How Long. If only for a few seconds, the
problem is with the timer. This unit (the larger of the relays and
usually black in colour) is fitted on the fuse board, and there
are a few different types. They come in 7 pin..8 pin..and even 9 pin
The glow plug light is often NOT accurate (even with a new timer unit
fitted) as to the time of heating, and you will almost certainly find
that power will flow to the plugs for quiet some time after the light
goes out. This is not unusuall with The Jetta Tdi.
I hope this helps you sort out this problem
You should get the OBD codes read. This should pinpoint the problem.
This light is connected to an emmissions problem. Re setting it will do
nothing as it will come back on as soon as the on-board computer
re=booths. As you dont have a loss of power,it sounds very like one of
the lamda units is faulty, but do the code reading to be sure.
Best of luck with it
i am having the smae problem with my vw polo tdi apart from its like my turbo cuts out completly and the car will not rev over 3000 at all. there is know lights on in the dash but if its dry weather the car is fine. not to handy when u live in scotland HAHA