MAF Connector Wires

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Nov 25, 2005 | 07:30 PM

Synful

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Joined: Nov 2004

Posts: 285

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From: California

MAF Connector Wires

What are all the different colored wires coming off of the connector that plugs into the MAF sensor

red = constant hot

what do the other 4 do

thanks

Nov 25, 2005 | 10:29 PM

Trickster

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Joined: Sep 2003

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From: conway, s.c.

Car: 1989 Iroc-Z

Engine: 5.7L TPI

Transmission: 700R4

Here is the color coding for the MAF sensor.

Pin "A" = black/white wire to ground
Pin "B" = black wire to pin "A11" of connector "C1" on ECM.
Pin "C" =dark green wire to pin "B12" of connector "C1" on ECM.
Pin "D" = dark blue wire to pin "A" of burn-off relay and pin "C" of MAF relay.
Pin "E" = red wire to pin "E" of MAF relay.