Hello,

My car is : Audi A4 1.8T Quattro 1996 AEB engine

I've just changed my MAF ( Bosch 0280 217 117 instead of 0280217112 much too expensive )


the car runs very well , good idle, no more running too rich but there's some strange things happening around 2000 RPM.

The boost seems to have a sudden peak and if i stop to accelerate at this time, the engine have some little hesitations.

If i accelerate normally, there is no hesitations

What do you think about that ??

PS : My DV is new , i changed it for a 710 N just a year ago . My N75 valve is new too

Thank you

ytrezzzz

To test the DV, attach a hand vacuum pump tool to the top hose connection on the DV with a length of vacuun hose and apply 15 inHg vacuum to the DV diaphragm. The DV must hold that for at least 1 minuite. If you cannot achieve at least 15 inHg vacuum, the DV diaphragm has failed.