I've found that on the Rovers (L series in the 45 & BMW in the 75) the maf's deterioration mostly affects the signal in the very low flow range - from 1000-2000rpm. So measuring it at 3000rpm can't be guaranteed to show up a dodgy one. Usually you can tell by driving the vehicle - the loss...

Built and tested and will be mailed tomorrow. Please let me know how the 'towing' setting on the dash switch is. I can finetune it or change it one of the other settings so I always welcome feedback. What suits me may not suit everyone else. Ron

Are sure you? They are probably sick of me on the Mg-Rover.org forum! I will help where I can, Pms and emails are always welcome if I'm not logged in. Ron Ps I have added a link to the forum on my Td4 page - hope you don't mind.

Hi everyone, I'm Roverron of Mafam and Tuneam Tu3 tuning box fame. I'll be only too pleased to answer any queries anyone has relating to the BMW diesel engine. Not soley on tuning, but anything to do with faults and mods. I admit to not owning a TD4, but that engine (as in my 75) is a...