Wiring Help Please, Fuel Pump won't shut off |
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Wiring Help Please, Fuel Pump won't shut off |
rwilner |
Apr 23 2011, 09:54 PM
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#1
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No Ghosts in the Machine Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States |
My reverse lights weren't coming on. I traced it back to my ignition harness, which was totally hacked up. The yellow ignition wire was butt-spliced AROUND the relay board. The reverse light wires were run as completely separate wires. The pinout of the 12-pin connector on the aft side of the relay board was completely wrong. DAPOs strike again! I have no idea how this car even started and ran in this condition, but it did.
So I got a rebuilt relay board and a decent ignition harness from Mark Heard. I took the good part of my harness and the good part of his, and combined them. I rung out the harness with my dmm -- all good. I transfer the vreg and relays over to the new board, install, run the new harness. I turn the key to ACC and put the car in reverse. The reverse lights come on for the first time since I owned the car! Yes! But wait...the fuel pump seems to keep running. Before my repair, when I turned the key to ACC and left it, the fuel pump would run for a second or 2 and then stop. So I try to start it, and it's running really rough. It starts to make a wheezing sound after maybe 5 seconds, and I shut it off. I know this isn't a ton of info, but do you guys have any ideas? 73 2.0L FI, crane electronic ignition and coil. Moving in the right direction....I will undo all the sins of the past Thanks Rich Pics of the harness I removed are below (IMG:style_emoticons/default/barf.gif) |
r_towle |
Apr 24 2011, 08:20 AM
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#2
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Custom Member Group: Members Posts: 24,585 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Can you post a pic (up close) of the back side of that plug with the cover removed?
You may have swapped a few positions on the plug itself. Rich |
rwilner |
Apr 24 2011, 08:24 AM
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#3
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No Ghosts in the Machine Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States |
Can you post a pic (up close) of the back side of that plug with the cover removed? You may have swapped a few positions on the plug itself. Rich Rich I'll post a pic of both plugs. Honestly I suspect the 14 pin plug at the front of the board more than the 12 pin at the rear. The relay board I replaced had a burned out trace and 8a fuse was blown. When I opened the rear connector, the pins were totally hacked up -- one was crudely repaired and shorting across another pin (probably what blew the fuse), another wire was totally broken off the pin. I replaced these with good pins from a donor harness, but I suspect the pinout on that 14 pin is wrong. Be back in a few mins with pics, have to finish paying the bills |
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