George90 Posted February 13, 2019 Share Posted February 13, 2019 Hi there! I'm struggling for 1 week to find the problem on my 01 a4 1.8t ARY, when accelerating around 3000 rpm is jerky and it feels like the engine has no fuel, If I press the acceleration harder it just dies,if I take it gradually seems to be acceptable,but accelerating, starts to boost and around 3000 is dying. I've changed so far: pcv system, n75,divert valve,maf sensor,spark plugs,and checked the vaccum lines. On neutral it revs ok. Did made a scan with a generic obd 2 scan tool,it shows p0036 ho2s bank1 sensor2 and p0136 bank 1 sensor 2,that means is the lambda sensor,but can that one make the car to run so bad? help? please. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted February 14, 2019 Share Posted February 14, 2019 I Wondering if it could be an issue with the turbo or a crack in a turbo pipe? Obviously it could also be the lambda sensor as you've suggested. Cheers Steve Quote Link to comment Share on other sites More sharing options...
George90 Posted February 15, 2019 Author Share Posted February 15, 2019 Funny thing is,if I disconnect the n75 seems to work waaay better,and i've just replaced the n75. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted February 15, 2019 Share Posted February 15, 2019 7 hours ago, George90 said: Funny thing is,if I disconnect the n75 seems to work waaay better,and i've just replaced the n75. It's ironic you say that as I had a similar thing with an old Volvo. In my case the mad was replaced. Obviously there's always the chance that it's a faulty maf. Is it genuine Audi? Quote Link to comment Share on other sites More sharing options...
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