FI fuel and wiring routing |
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FI fuel and wiring routing |
watsonrx13 |
Jul 21 2008, 06:20 AM
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#1
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Advanced Member Group: Members Posts: 2,734 Joined: 18-February 03 From: Plant City, FL Member No.: 312 Region Association: South East States |
I've put my engine back in the car and want to confirm the FI fuel routing. I've looked at PP/Dave Darling's diagrams, but would like confirmation:
1. large (9mm) plastic fuel line from firewall connected to fuel filter 2. fuel filter connected to fuel pump at (S-suction) connection 3. (D-damper) connection on fuel pump connected to fuel rail on passenger side, rear connection 4. (R-return) connecton on fuel pump to Y connection 5. Y connection to small (7mm) plastic fuel line from firewall 6. Y connection to fuel pressure regulator 7. fuel rail on passenger side, front connection, to fuel rail on driver side, front connection 8. fuel rail on driver side, rear connection, to fuel pressure regulator 9. fuel rail on driver side, middle connection, to cold start valve. Also, I'd like confirmation on the electrical connection to the fuel pump: 1. black/red wire to the + side of fuel pump 2. brown wire to the - side of the fuel pump If I wanted to test the fuel pump outside of the car, I should be able to connect a positive wire to the + of the fuel pump, then to the + side of a battery, then - fuel pump to - battery. I could then connect the (S) fuel line and place in a container of gasoline. Then place the (D) and (-R-) fuel lines into an empty container. When I connect up the electrical lines, I should get the pump to hum and run fuel through the pump. Also, if I turn on the ignition, I should be able to get voltage across the black/red wire and the brown wire, correct? Finally, has anyone successfully found a shop that can rebuild these fuel pumps? -- Rob |
watsonrx13 |
Aug 12 2008, 06:54 PM
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#2
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Advanced Member Group: Members Posts: 2,734 Joined: 18-February 03 From: Plant City, FL Member No.: 312 Region Association: South East States |
Time for an update....
Received new FI fuel pump and it works off of the car. I then mounted it to the car, but still no power. I ran a hot wire from + battery to + fuel pump, leaving the - fuel pump wire hooked up from the wiring harness, fuel pump runs and fuel circulates through the lines and dumps back into the fuel tank.... Next, retested the relay board. Checking the fuse holder and pin 30 on the realy board for the main relay and the fuel pump relay and got 12.25 v. Before, I wasn't using a good ground. I began following Brad Anders flow chart and it failed on the first test. Wrap a wire around pin 87 on the main relay, insert back into the board, switch on ignition and test for 12 v. FAILED... remove backing of relay board and test printed circuits (I'm NOT doing that). So I found another relay board, tested and got the same results... OK, I decided to check the timing. I installed new rotor, dist cap, points and condensor, spark plugs and wires. Hooked up the timing light, turned engine over using a remote starter.... No light from timing light.... (IMG:style_emoticons/default/idea.gif) OK, I then removed a spark plug and grounded to the block, turned over the engine, no spark.... OK, I disconnected the coil wire to the distributor, then turned over the engine, no spark... (IMG:style_emoticons/default/huh.gif) Finally, called Joe and told him I don't have power to the coil. His recommendation was to put a + wire directly from the battery to the + coil. I turned over the ignition and I have spark.... (IMG:style_emoticons/default/aktion035.gif) Joe said that there is probably a fault in the ignition switch that's not turning on the coil, but I can start the engine with the ignition switch.... So my question is, can the ignition switch be causing a power issue with the relay board? -- Rob |
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