Hi Robski I dont have a huge amount of time to spend on the merc at the minute so I cant be sure that I have eliminated all possible causes of low maf reading, e.g EGR etc. I got an ultra cheap second-hand tested genuine maf sensor. It arrived yesterday. Even if its not a faulty maf giving me the lo...

Hi Liteace As I didnt have a wiring diagram I just back-probed each pin to figure out which was which. All other pins are giving correct readings, feeds and earths are good etc. so I'll just order a new MAF. I also checked last night for any leaks after the MAF which may cause a low peak reading but...

clean maf and af 3.psdata Hi everyone Im a complete novice with the pico (so go easy on me! :wink: ) but I got a lend of one last night to check my maf sensor. I have an old E300td (1999) that is in need of a lot of work. Among other problems I suspect the maf may be faulty and may be contributing ...