I have 2 plugs at the fire wall of my 73 Mach1. The 4 prong has the same colors as the oil, water and coil colors from the books with an extra power plug. The 3 prong plug has a brown/orange D an black/yellow D (female) and a white/black (male) what are these wires and where can I get the engine side harness? Thanks Lynn
73 Mach1 wireing at fire wall.
- Thread starter lynn
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NPD, and many other Mustang parts supply houses, carry the replacement engine harnesses.
https://www.npdlink.com/1965-1973-mustang/electrical/wire-harness/engine-gauge-feed?year=1973
The fourth lead on the first connector is for the anti-dieseling solenoid on the carb. Also called a throttle positioner solenoid.
Brown/Yellow dots is for the EGR cutout solenoid
Black w/Yellow dots is the AC compressor
White w/Black stripe is carb choke power
https://www.npdlink.com/1965-1973-mustang/electrical/wire-harness/engine-gauge-feed?year=1973
The fourth lead on the first connector is for the anti-dieseling solenoid on the carb. Also called a throttle positioner solenoid.
Brown/Yellow dots is for the EGR cutout solenoid
Black w/Yellow dots is the AC compressor
White w/Black stripe is carb choke power
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