Mass Air flow Sensor Power Relay

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Clayton Mallory - 21 Sep 2007 14:08 GMT

I'm having one heckuva time finding the MAF sensor power relay on my 1996
vette. Anyone know where this relay is located on the vehicle? Thanks.

Clay

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Bob I - 21 Sep 2007 20:58 GMT

Humm, I have a '95 and there is nothing in the wiring diagrams that
indicate such an animal exists. It's just powered off the same 10 amp
fuse as the 2-3 gear blockout relay and the EGR and Evap canister purge
solenoid valves. Those relays for the Bosch MAF's on the early C4's are
aft of the battery.

> I'm having one heckuva time finding the MAF sensor power relay on my 1996
> vette. Anyone know where this relay is located on the vehicle? Thanks.
>
> Clay

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Fixitman - 21 Sep 2007 23:37 GMT

> I'm having one heckuva time finding the MAF sensor power relay on my 1996
> vette. Anyone know where this relay is located on the vehicle? Thanks.
>
> Clay

There isn't a "power relay" for the MAF on a 1996 vette. The power is fed
via a pink wire from the ENG 1 fuse in the instrument panel fuse block. This
circuit should be hot in run, bulb test, or start. Also note that the MAF
ground point is at the left rear of the engine, near the oil filter. Lastly,
the MAF signal wire (yellow) connects to pin 19 of connector 2 on the ECM.

Hope this helps,
Fixitman

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