Just a quick update, after fitting the used SAGEM MAF I have now managed to go for a reasonable drive around to get the ECU to adapt to the change. It is now a very different car, smooth as silk, idles as steady as a rock, no hesitation when pulling away in a hurry and just generally feels very...

One thing is that I didn't expect 2 "new" MAFs to be totally useless!

Believe me there were a multitude of cuss words, some really, really naughty ones :) Funny thing is a local chap pulled in in a s3 Landy and asked if I wanted to sell it, hmm, the thought had been crossing my mind, trouble is it would be like selling one of my kids, however, it all depends on...

Just to update. I have again tried the 2 new MAFs with the same ending, chugging black smoke and backfiring. I have now fitted a good used one from James Coleman (SAGEM OEM) and tried it, it started but was really rough. I checked for any faults (none) and then did the adaptive reset, suddenly...

Wot Keef said :)

All sorted, pretty easy TBH, the plastic latch piece on both had got gunked up with old grease, dirt and rust, a few squirts of brake cleaner and nice new lube. I didn't even need to remove the latches, both smooth as silk now and close and open easy peasy :) Cheers all, now onto the MAF...

The lower one has a screw in the door the upper is held with the pin and sac cup. I am not sure if there is a screw in the front of the door, mine is just clip on with the above fittings. I have some in my spares boxes just in case :)

Many thanks, lotsa info to get on with there, the engine was idling on the old MAF for all screen shots, odd about the airflow bit, I did wonder but I am not au fait with using engine diagnostics so I wouldn't fully know what I am looking at!

Thanks guys, there is something to get on with then :)

Thanks Pete, My MAF only has 3 pins, it is a GEMS and not Bosch/Motronic. When I put the new MAF in (either one) I cannot physically drive the car because it won't rev no matter how hard I press the pedal. The readings do change when revving on the old MAF, I can't keep the engine running for...

If any one can interpret these, they are readings on the old MAF after clearing the fault and doing an adaptive reset

Thanks Pete, I have done the reset adaptive values with the Nano but both of the new MAFs still overfuel and I cannot get a tickover let alone any revs, as soon as I unplug either of them the engine then goes to idle and runs and revs etc. If I plug back in it remains that way until I do a...

Mines a 4.6 HSE Petrol, where do I check the MAP? When I replaced the MAF 11 years or so ago I just fitted it, plugged it in and all was ok, this time not so. The MAF shows up when doing the fault check so I would assume again that the thing is connected because I can clear the fault and when...

Hi Keith, I would have thought that if it was the connector or connections that it would make no difference with it plugged or unplugged. If I start the car with either of the new MAFs the thing overfuels and I cannot get it to rev, if I pull the plug it then runs and if I plug the thing back in...

Since I put the original MAF in the engine is doing what it is supposed to so I am assuming the other bits are doing what they should, I will run a check though. I would like to put one of the new ones on though because I don't trust the old one seeing as it threw a fault previously. I just...