Question about 1997 Volkswagen Eurovan

2 Answers

Keep losing accelerator!!??

My 2002 VW T4 2.5TDI has developed a nightmare fault. It occurs whenever it feels like it, on start up, during braking or simply travelling in a straight line. The engine simply 'trips out' and revs at 1200rpm, the accelerator is useless and does nothing. It can be reset, albeit temporarily, by flicking the key or restarting the engine. On my journey home from work tonight it happened 6 times at various intervals, it's only 4 miles. Sound familiar to anyone out there? 24 cans of Stella to anyone who can help me out.......................

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  • mentalvento Feb 01, 2009

    I have exactly the same problem but a lot worse,
    I have to keep tapping the pedal to be able to use the gas pedal at all otherwise if you push it too far down the ECU just go's into diagnostics mode and revs at 1200rpm enough to get you home. The coil light also flashes to say there's a fault.
    I luckily have a cousin who is an auto electrician who has an expensive computer to clear codes and do various other things with the ECU.
    I changed the accelerator pedal and cleared all the error codes on the ECU, but i think changing the pedal was a waste of money as it clearly has not solved any problems.
    I was told that it could be a weak connection somewhere and nothing to do with the pedal.
    My advice is don't start changing parts as this will just get you more wound up.
    Try moving things around in the fuse box maybe a loose connection somewhere!
    Let me know anybody if you have any news on this problem as i will do the same once i have a fix for mine.

  • mentalvento Feb 03, 2009

    i have purchased a OBD2 cable and installed but it does not seem to work properly.
    I cannot also use all of the functions with the version i have 409.1.
    It takes around 5 minutes to finish a full scan, is this normal?
    also it says my van is not OBD2 compliant, but i am sure it is. 2000 model t4 2.5 tdi?
    getting a bit fed up now.
    Somebody please help.



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I find this fault only happens to my 2001 T4 if I leave the van downhill and it is raining? When this happens I leave it facing up hill over night and the van runs fine untill I leave downhill in the rrain. Very strange I also have changed the pedal but its starting again.

Posted on Jul 22, 2011

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It sounds to me like it's going into "limp mode" - Google it! It's a kind of "get-you-home" setting when there's something wrong. You will need to get the fault codes read (or do it yourself with VAG-com software on a laptop) and then take it from there. It needn't be an expensive problem - maybe a split air hose in the turbo system - or it might be a dirty MAF or stuck vanes in the turbo itself, or any combination of 1300 other things. Main thing is - don't go replacing things willy nilly! Get the fault codes (aka DTC's) read first. An interface cable costs about £15 and the VAG-com software can be downloaded for free.

Hope this helps you a bit. If it does, a "Fixya" rating would be much appreciated. If it doesn't
help you, I'd be grateful if you didn't bother with a rating at present - they can't be increased later if I do manage to solve your problem! Just come back and tell me what you found.
Cheers, D
93 Golf, 96 Passat, 97 Sharan

Posted on Dec 03, 2008


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