OK. I am sorting out an '86 IROC harness for a TPI swap and the schematics from the service manual read: "MAF Sensor B+ Feed". What in the world kind of relay is this and what do I tell the dealer when I go to order one. Oh, by the way, the parts guy at the dealer is clueless. Thanks guys!

 

Well seeing as how there are only 2 relays in the 86-89 MAF setup, (for the MAF anyway, don't get excited now) it would have to be either the burnoff or the power relay, both would be located next to the brake booster, one on either side of the fuel pump relay. My guess since you say it says "B+ feed" would be that it's the burnoff relay, or it's connector.

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Kevin Irving
85 Trans Am WS-6, 305 TPI, custom burned '86 PROM with '87 "165"ECM, Accel Supercoil & 8.8 Wires, Rapidfire #2 @ .055", MSD 6AL, 1.6:1 Roller tipped rockers, Homemade AFPR, K&N cone, no airbox, Aluminum Driveshaft, Wonderbar, TB Coolant Bypass, Ported Plenum, Descreened MAF, Syclone Fuel Pump, JET Airfoil, Mobil 1 synth in all but transmission.

http://www.geocities.com/transam85tpi/