circuitguy
Full Access Member
- Joined
- May 5, 2013
- Posts
- 658
- Reaction score
- 46
- Location
- Elk Grove, CA
- First Name
- BIG-C
- Truck Year
- 1987
- Truck Model
- GMC 1/2 ton Stepside
- Engine Size
- 350 / 5.7
Installing a new NOS under hood engine harness for my 87 R10, there are a few different extra wires that the original one did not have, can anyone help with what these are for?
Three wire plug at the fuel pump relay?
Single long orange wire with round plug coming from the rear of the engine harness?
Three wire plug at oil dipstick?
Grey plug with brown and black wires at ac compressor?
Three wire plug at the fuel pump relay?
Single long orange wire with round plug coming from the rear of the engine harness?
Three wire plug at oil dipstick?
Grey plug with brown and black wires at ac compressor?
