p.43-44Thanks!!! I already have the Pinout I’m looking for the actual wiring schematic. The one posted above is for a 1990+ car. I need the one for a 1987. I could probably make some common sense calls with wiring from the cluster as usually they’re just moved around on the connector. But I don’t want to go too crazy there.
I did buy a digital download for the 1987 EVTM guide and it’s pretty helpful but no full blown system schematics that are typically at the back of maintenance manuals. Definitely disappointed in that aspect. It does have some schemctics that I will have to jump around in and see if it has the info I need. So far it looks like it may suffice. Looks like I have shorts involved with the lighting as I’m reading shorts at left and right turn signal indicator and the high beam indicator. Will have to continue digging tomorrow (hopefully).
Pin20 grounded to chassis in kick panel?That’s where mine (pin 20) is grounded.
No it is not green. Looks like a typical self tapping sheet metal screw.Is the screw for the ground in the kick panel green?
On my donor car, a 87 TBird 5.0, there was a stud I would say stud welded in the kick panel. On that, both the fuel pressure relay and pin 20 were grounded together. I replicated that exact configuration when I swapped the components into my 73 Stang, including the location.
My ignition switch was broken so I did replace that but I was still not getting the fuel pump to come on when the key was on. The short was caused by the slosh module. So I ripped that out. I was not getting the ground switch at the ECM because of bad grounds at pins 40&60. Once I grounded those to the battery connection at the shock tower the fuel pump fired up. So I was dealing with multiple issues it seems.I was going to suggest checking your ignition switch, as that is a common problem resulting in the EEC and fuel pump not coming on, but you can still trigger the fuel pump via the test port.
You keep saying “short to ground”, but that is 12v circuit grounded out and resulting in blown fuses, melted wires, smoke and fire.
The computer ground under the hood, a cylindrical connection that connects to the fender by the battery tray with a wire that comes from the ground on the battery, the wire is buried in the harness that goes up to the drivers side of the firewall. Is this wire duplicated on this setup?
I don't know about pin 20 and grounding that wire, all my stuff is like factory with few exceptions.
the factory used green sheet metal screw on ground wires inside the cab.
I need to go back and read the thread again
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