Re: Lq9 swap wiring help needed
Fuel Pump wire, I use 12 gauge, But 14 gauge will work fine.
Purple TCC brake switch wire, You will need a Dual Pole Brake Switch, '85 Chevy C10 w/ cruise is a good application, How to wire it has been covered several times here.
Cranking signal wire....Not needed.
AAW VSS power....Not Needed. Your PCM has a 4000 PPM signal out of the PCM for an electric Speedometer.
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