Quote:
Originally Posted by blue62
Ok your battery voltage looks ok. The 15% capacity was throwing me off.
I do think it is most likely a MAF issue. I also thought it could be a vacuum leak.
But with negative fuel trims and and plug color showing a rich condition a vacuum leak is unlikely.
Keep us posted I like to know final outcomes.
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5 point Torx arrived, but won’t get enough grip on the bolts, both are rusty, so I had to drill them out. Fortunately I found a couple of screws that are almost the correct size, so they will do until I get some new bolts.
The MAF looked reasonably clean, just a small amount of dust on the sensor, cleaned off and left to stand.
I put it back in and after the engine was warm MAF reads 4.2g/s at idle, same as before. I took it for a drive, 100% better, probably about the same as it was with the MAF disconnected.
My short term fuel trims settled down to around 0%, long term on bank 1 is -0.78, but bank 2 is -3.91. I suspect this might pull back towards zero after a few more miles, but given it felt smoother I am not going to worry. I will try to get a few miles on over the next days.
Intake air temperature was 20C, actual air temperature is 9C, I guess the intake gets a bit f heat from the engine when warm.
I think I will buy a new MAF, now that I know it’s part number and hopefully that is it.
Robin
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