 Fuel pump stopped working a couple of days ago, could it be the relay board |
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| JimN73 |
 Sep 24 2017, 11:50 AM
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#1
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Senior Member  Group: Members Posts: 535 Joined: 6-October 07 From: Gig Harbor Member No.: 8,192 Region Association: Pacific Northwest  |
I have no power at the pump.
I have 12.4 volts at pin #13 on the relay board. No power at pin #5 or 7, old eyes can't see the stripe colors very well. Fuses are good. Am I missing something? Thanks in advance. |
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| Spoke |
Oct 7 2017, 11:43 AM
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Jerry Group: Members Posts: 7,104 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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I'm a bit confused on what you have found so far.
Have you determined that the Power Supply Relay is on? The power supply relay on will provide 12V at pin I of the FI connector. Do you have 12V at pin I of the FI connector? Have you determined that the Fuel Pump Relay is on? Checking the FP relay is a bit more tricky. You can pull the relay and place a small wire in the FP socket on pin 87. Install the relay, turn power on, and measure 12V on the test wire. If this is ok, pull the 14 pin connector and FP relay and measure resistance from the FP relay pin 87 to pin 13 of the 14 pin connector. Should have zero ohms. As an aside, I've found when working in the engine area for more than 1 hour, if you remove the engine hood you will have much better access to the items you're working on. The hood is held on with 2 10mm bolts and is easily removed and replaced. |
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Posts in this topic
JimN73 Fuel pump stopped working a couple of days ago Sep 24 2017, 11:50 AM
JimN73 and:
3.5 psi pump for carbs, and
the relays are ... Sep 24 2017, 12:35 PM
Dave_Darling
and:
3.5 psi pump for carbs, and
the relays are... Sep 24 2017, 03:00 PM JimN73
and:
3.5 psi pump for carbs, and
the relays ar... Sep 24 2017, 03:32 PM Elliot Cannon Mine stopped working about a month ago. I tapped ... Sep 24 2017, 01:49 PM JimN73
Mine stopped working about a month ago. I tapped... Sep 24 2017, 02:25 PM JimN73 After cleaning some corrosion around pin13 and 14,... Sep 29 2017, 07:24 PM Spoke Power to the fuel pump relay is provided by the po... Sep 30 2017, 09:37 PM euro911 When you turn the key to the 'on' position... Oct 1 2017, 12:55 AM Olympic 914 try this troubleshooting sequence. it worked for m... Oct 1 2017, 09:45 AM cary Here's what I finally did on Matt's car. H... Oct 1 2017, 09:51 AM JimN73 Thanks, all. More troubleshooting and maybe some ... Oct 1 2017, 05:10 PM JimN73 Well, here is the final answer - I think.
Thanks ... Oct 6 2017, 01:22 PM euro911 You can probe the wire outbound of the connector t... Oct 6 2017, 08:08 PM JimN73
You can probe the wire outbound of the connector ... Oct 7 2017, 10:57 AM euro911
You can probe the wire outbound of the connector... Oct 7 2017, 01:26 PM injunmort here is a simple test, fast, effective and isolate... Oct 7 2017, 11:23 AM euro911 ... As an aside, I've found when working in th... Oct 7 2017, 01:16 PM JimN73 Here's what I have done. I think I covered eve... Oct 9 2017, 10:04 AM |
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