Good afternoon, I'm working on my 88 sixer. I can't get the DME to supply ground to pin 85 on the fuel pump relay. If I give terminal 85 on the fuel pump relay a ground source the fuel pump will run and the motor will start. I can also give the same wire (brown with green striper) a ground at terminal #3 at the DME connector and the pump will run and the motor will start. I have the Bentley, I'm looking directly at the wiring diagrams. It appears as though my DME is not supplying ground to pin three, I believe my DME is shot. Thoughts? The motor starts and runs fine with that circuit grounded.
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Calling Jlevie, no ground signal on pin #3 on 55 pin harness
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Just realized my IAC is not working either. Found 12V on center pin. Went to DME connector and unplugged DME, check OHMS on 4 and 22 found 45ohms. Also checked IAC resistance at IAC found correct values according to Bentley. I tried a spare just for shits and giggles but no go. It looks like I need a 179 DME. Anybody have one?sigpic
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