Re: Bmw 320
Posted by Peter Holland
on November 19, 2009, 7:55 am, in reply to "
Bmw 320"
Peter Holland
Have you checked the wiring at the MAF sensor? If its a five wire sensor, it'll have a built in air temp sensor, a four wire MAF will have external air temp. I haven't got a wiring diagram here at the moment, but you're looking for a 5v and a 12v supply, a negative, air temp will read around 2v and stay static when rev'd and signal wire should read around 1.7 - 2v @ idle (from memory) and should peak at around 4.5v when rev'd hard.
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