Fuel pump not running |
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Fuel pump not running |
Rand |
May 19 2019, 05:29 PM
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#1
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Cross Member Group: Members Posts: 7,409 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
75, 2.0, djet. Won't fire. Spark is good. A little starting fluid in the intake and it fires. Clearly a fuel problem. I'm not hearing the fuel pump. Shouldn't I hear it for a few seconds when first turning ignition on? I checked the fuse (#25 on the relay board) and it's good. I'll put a multimeter on the pump terminals to check for power next, but thought I'd throw this out there to the collective for any other input until I can get back to it. Grounds are also on the list. Or put power directly to the pump and see if it runs.
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Spoke |
May 19 2019, 06:47 PM
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#2
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Jerry Group: Members Posts: 6,979 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
To test the fuel pump drive w/o the FI ECU, remove the FI ECU plug from the relay board and jumper pin 3 of the FI ECU socket to chassis ground. This will remove the ECU from the picture and test the entire fuel pump drive (FI power supply relay, FI pump relay, wiring to the FP, and the FP). When you turn the key to ON the fuel pump should be energized. If you hear it then likely it's the FI ECU or its sensors.
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