 Yet another "no power to fuel pump" thread... |
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| kpfoten |
 Jul 6 2009, 09:03 PM
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#1
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Member  Group: Members Posts: 220 Joined: 15-April 08 From: Escanaba, MI Member No.: 8,927 Region Association: None  |
'73 1.7L D Jet I'm not getting voltage to the fuel pump. Continuity from relay board connector to pump. Pump works with direct voltage. I'm getting 12V to relays. Both pump relay and main relay are good (run headlights and click). 12V to fuse both sides, new fuse. Tried measuring voltage to pump when I power on the key and crank. Looks like a small registration on my voltmeter (in the mV range). Also tried test light--no power. Visits to websites for fuel pump troubleshooting given in previous forums (testing relay board, etc) seem normal. Considering fuel injection harness/III connector--I can jump this to ground to see if the pump runs, correct?? Any other options? Thanks! |
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| swl |
Jul 7 2009, 06:14 PM
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Senior Member Group: Members Posts: 1,409 Joined: 7-August 05 From: Kingston,On,Canada Member No.: 4,550 Region Association: Canada |
yes you're good to go with pulling that four pin connector and grounding pin III. That is what the ECU does. Key must be on of course. Consider lifting the power to your coil when testing to protect your points.
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Posts in this topic
kpfoten Yet another "no power to fuel pump" thread... Jul 6 2009, 09:03 PM
McMark
This terminal must be grounded to trigger the FP ... Jul 7 2009, 01:23 PM Dr Evil Make sure that your AAR is not shorting your syste... Jul 7 2009, 07:16 PM
914_teener
Make sure that your AAR is not shorting your syst... Jul 7 2009, 07:21 PM jimkelly pin 3 Jul 7 2009, 08:13 PM Dr Evil Here is my schematic to show what I was talking ab... Jul 7 2009, 08:22 PM kpfoten Great--thanks guys.
The heater was disconnected a... Jul 7 2009, 08:43 PM kpfoten Grounding III results in power to fuel pump.
Wha... Jul 7 2009, 09:16 PM swl Yup - that's what I would do. Pull the harnes... Jul 7 2009, 10:07 PM kpfoten Yet another newbie mistake!
I mis-read a thre... Jul 8 2009, 10:11 AM underthetire Mine grounded on a spade terminal on the engine. U... Jul 8 2009, 11:00 AM |
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