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Old 10-23-2009, 06:17 PM
george k george k is offline
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Default MAF wire connector to MAF volts??? strong weak signal

So..... We have a code 34 low maf volts, we put the cont. tester to the three connections at the end of the harness. The middle wire is showing both ground and power with a weak signal. The other wires show strong ground and a strong power. That middle wire is weak and pulls both is this normal?
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Old 10-23-2009, 11:16 PM
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TurboBob TurboBob is offline
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the middle wire should show 5v with the key on, as it has a 'pullup resistor' in the ECM connected to 5 volts.

The MAF puts out "ground pulses"

How are you testing?

Bob
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