Got a 80 avant tdi, which from day one of picking it up was lame and underpowered. Checked usual sensors, maf and n75. checked for any holes in intercooler pipes or loose fits. gave her a service which improved responsiveness marginally. managed to pin it down to porous vacuum hoses which i replaced all of. Now the car picks up well low down to about 3000rpm then when held in the gear for any longer, kind of surges. it feels to pull then die back a little pull then die back a little. difficult to explain and im probably not wording it as well as i possibly could but never come across this before with 1z's. any sggestions appreciated.
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could be the air mass sensor. it has a potentiometer inside which wears out, as there is a needle that is travelling up and down.
you should open the box, and move the sliding plate just little bit so the needle travels on fresh ground.Audi Quattro WR
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Originally posted by Sküll View Postcould be the air mass sensor. it has a potentiometer inside which wears out, as there is a needle that is travelling up and down.
you should open the box, and move the sliding plate just little bit so the needle travels on fresh ground.
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it is not hard in terms of mechanical knowledge, but it is a bit time consuming. i dont remember exactly if you have remove the turbo (i think not).
new seals are a must, as there must be no leaks.
this is the only pic i have from when i did it...
Audi Quattro WR
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