Climbing a hill or accelerating up an on ramp at or near full throttle, occasionally the power just dies. Climbing hills, it actually loses speed with the pedal mashed. On the flat, it can barely gain speed.
To clear this, I just pull of to the side of the road, turn off the engine for a few seconds, restart, and everything is fine. Happens about once a month though the frequency is increasing of late.
MAF screwing up the fuel supply?
Turbo cutting out?
I'm baffled . . .
Peter
I would start there. And check for water in the filter. It only takes one tank of crap diesel to screw the whole thing up. My wife's new Beetle TDi went through this twice. One time the filter was about
12,000 miles old... and plogged with water. Needless to say, she quit going to that station for fuel.Can you even hear the turbo when it kicks in? Because it really sounds like fuel-starve. And a pause by the side of the road allows everything to equalize and the water in the filter settle back to the bottom.
Peter Wieck Wyncote, PA
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Yup, it's limp mode alright, exactly the symptoms -- fuel starvation -- looks like I'm in for another MAF. Oh joy.
Thanks for the responses.
Peter
The MAF is often not the problem. Try to get the car on a VAGCOM and diagnose the problem rather than throw parts at it.
You're right as I did some checking after my last post and there are a variety of possible culprits. The LAST thing I want to do is chuck parts at it. Been there, done that on my last vehicle (Ford).
I had a similar occurance after the fuel filter was changed. That "T" fitting had a small crack in it and it was sucking air into the system.
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