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Posted on Jun 16, 2009
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2002 chev avalanche mat sensor

On a 2002 chev avalanche i just need to know which 2 wires in the group of 5 is for the mat sensor

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  • Anonymous May 11, 2010

    from where? what lume or harness are you looking at?

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  • Posted on Jun 16, 2009
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I assume you are looking for the wiring for the IAT because MAT sensors are no longer used..

here you go

black / white - PCM ground
pink - fused 12-volts
yellow - MAF signal
tan - IAT sensor signal
black - IAT sensor ground

manifold temp. sensors are no loner used.

I believe you are looking for the IAT "intake air temp sensor" which is part of the mass air flow sensor.

good luck

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  • Anonymous Jun 16, 2009

    it is part of the mass air flow sensor. in the intake tube between the air filter and throttle body

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