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Re: my golf 2001 tdi after 3000 rpm sometimes he cuts the...
Could be a few things. IS the check engine on? Could just be a bad mass air flow sensor. Or a seized wastegate. Yuo can start by trying to unplug the mass air flow sensor. If it runs better it could be just that. Just make sure to remove and clean the lower air filter box change the air filter and the snow screen which is located next to the battery where the air enters. These always are blocked. If it runs ok (not perfect change the mass air flow.
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Sounds like a turbo problem, check all electrical connections and vaccum hoses, any engine lights on? Then it's time to take it in, I assume you have a good VW expert just around the corner who is honest, reasonable, and reliable,,,, sometimes it happens! Hope this helps, and look into it right away, it can cause other problems if let go $$$$.
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?