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#1
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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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#2
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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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