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Mass Air Flow Sensor - good or bad? 850

posted by  meatfingers on  Thu Dec 6 04:25 CST 2007
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last visit: Tue Dec 11 01:44 CST 2007
[RELATED]

Update - measurement error.

I just re:measured the resistance across terminals #4 and # 1 on the MAF
sensor (with the plug disconnected) and found out it is actually 23900 ohms
(23.9K) and not ~ 750 ohms. Hoping to find a resistance nearer to 110 ohms
I had used the 2000 ohm setting on my DVM which apparently also serves as
the setting for a diode check. When the leads are reversed + to -ve there
is no reading. Using the 2000K ohm setting and higher gives a consistent
23.9 K reading.

This is likely significant given the spec calls for 110 ohms.

Seems from this I need to replace the MAF but before I do it would be nice to be sure? The car works fine other than upon a cold start up.

David





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