- Joined
- Mar 11, 2013
- Messages
- 11,171
- Location
- South Bucks
- Car
- CLS63 SB, ML63, CLK350 'Vert, E350 CGI 'Vert, Triumph Sprint (Bike not Dolly...),
Surfing the net regarding MAF sensor cleaning or replacement to get rid of my CEL, I gather there are numerous possible causes of my P101 generic fault code, as well as the MAF sensor itself. The engine runs well, except for a lumpy idle, and slightly odd throttle response at lower revs.
I also came across a suggestion that if you simply unplug the MAF sensor, leaving just the map and the throttle to control the revs, if the lumpy idle is then cured, the fault definitely lies with the MAF sensor itself. In general terms this might seem plausible, but would it work on the n/a M113 in my ML500, or would it simply not run at all?
I also found info (still looking...) that if you unplug the MAF sensor and the engine stops, this means the MAF is definitely faulty!
They can't both be correct. Anybody know which is?
I also came across a suggestion that if you simply unplug the MAF sensor, leaving just the map and the throttle to control the revs, if the lumpy idle is then cured, the fault definitely lies with the MAF sensor itself. In general terms this might seem plausible, but would it work on the n/a M113 in my ML500, or would it simply not run at all?
I also found info (still looking...) that if you unplug the MAF sensor and the engine stops, this means the MAF is definitely faulty!
They can't both be correct. Anybody know which is?
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