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foamypirate · 05-13-2016, 03:15 PM

I pulled the TBI harness out from the firewall hole, and then traced it back to the bulkhead and pulled out most of the wires from the bulkhead.

You will want to KEEP the following wires, along with anything that does not attach to the TBI harness (wiper/washer wiring should really be all that's left besides what I list below):

Red 14ga - 12v from battery
Tan/White 18ga - to fuel pump
Dark Green 18ga - temp gauge
Purple 12ga - starter crank wire
Red 14ga - 12v to firewall junction block
Tan 18ga - oil pressure sensor

05-13-2016, 03:15 PM	#2
foamypirate Registered User Join Date: Apr 2009 Location: Pflugerville, TX Posts: 594	Re: 87 burb 4.8 Swap wiring I pulled the TBI harness out from the firewall hole, and then traced it back to the bulkhead and pulled out most of the wires from the bulkhead. You will want to KEEP the following wires, along with anything that does not attach to the TBI harness (wiper/washer wiring should really be all that's left besides what I list below): Red 14ga - 12v from battery Tan/White 18ga - to fuel pump Dark Green 18ga - temp gauge Purple 12ga - starter crank wire Red 14ga - 12v to firewall junction block Tan 18ga - oil pressure sensor Last edited by foamypirate; 05-13-2016 at 03:20 PM.