i have a 1999 S4 bi-turbo which i have been running for a couple months without a MAF connected (waiting for funds to buy a new one), as the car would not accelerate or rev above 3000rpm with it connected.
i have just bought a new MAF and put it in the car and it runs just as bad as the origional one. i sent this MAF back because i thought it was faulty and they sent me a new one, but upon installing this new MAF the problem is still there.
when the new MAF is connected and all fault codes removed from the ECU i took the car for a test drive (trying hard not to stall the not so smooth engine), when i got home no new fault codes were generated.
The MAF has all the signals connected to it 12V 0V and 5V and i have buzzed the signal wire to the ecu and it was ok.
I am stuck, has anyone else had a similar problem??, do i need to let the ECU adapt to this new sensor??
thanks in advance for any replies