Bumper
New Member
I dont post on here often but I need a little help with this issue. Let me say that I am NOT a mechanic, but I am getting toward the end of what has been a pretty long project. But, in order not to bore yall with the details, I will get to the point. I have a 1966 Bronco. It has a Centech wiring harness. I installed an Explorer engine, a Ron Francis COBRA 75 EFI (MAF) harness. I have an MSD distributor with TFI and an A9L ECM from a Mustang GT. When I FINALLY attempted to start it up.....the engine turned over but didnt start....obviously. Thru very limited investigation into this issue, due to the fact that I must remain gainfully employed, here is what I know.
Fuel pump is not being energized.....I have no fuel in my fuel lines......I checked
I am getting no fire to the plugs
I SUSPECT that this is either because my ECM is bad, or I do not have it wired to the correct power supply. All my fuses are good.
The directions for the RF EFI harness speak to a group of wires that go under the dash and says the following:
Orange KEYED RUN Ignition Power Supply
Purple START Start signal for ECM
Green TACH Tachometer
Tan MIL Check Engine Check Engine Light Negative
Red MIL Check Engine Positive Check Engine Light Positive
So, my check engine light DOES work......my TACH does have power going to it.......so my thinking is that I dont have the Orange and purple connected to the correct place.
Both wires are landed on the BACK SIDE of the fuse box.....but I cannot tell for sure EXACTLY what they are terminated to as the fuse box is installed. I am going to ATTEMPT to access the box by taking the glove box out before I go thru taking the hood off and dropping the dash.
MY QUESTION IS......where do I need to land those two wires (orange and purple) on the back of that panel (or do I need to splice them into a wire and if so which one ) to assure that I get power to the ECM? I honestly do think the ECM is good....but I am NOT sure those two wires are properly connected.
Fuel pump is not being energized.....I have no fuel in my fuel lines......I checked
I am getting no fire to the plugs
I SUSPECT that this is either because my ECM is bad, or I do not have it wired to the correct power supply. All my fuses are good.
The directions for the RF EFI harness speak to a group of wires that go under the dash and says the following:
Orange KEYED RUN Ignition Power Supply
Purple START Start signal for ECM
Green TACH Tachometer
Tan MIL Check Engine Check Engine Light Negative
Red MIL Check Engine Positive Check Engine Light Positive
So, my check engine light DOES work......my TACH does have power going to it.......so my thinking is that I dont have the Orange and purple connected to the correct place.
Both wires are landed on the BACK SIDE of the fuse box.....but I cannot tell for sure EXACTLY what they are terminated to as the fuse box is installed. I am going to ATTEMPT to access the box by taking the glove box out before I go thru taking the hood off and dropping the dash.
MY QUESTION IS......where do I need to land those two wires (orange and purple) on the back of that panel (or do I need to splice them into a wire and if so which one ) to assure that I get power to the ECM? I honestly do think the ECM is good....but I am NOT sure those two wires are properly connected.