 Strange Fuel Pump Ground III Problem |
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| LukeD |
 Aug 31 2015, 02:58 PM
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Member  Group: Members Posts: 254 Joined: 14-November 04 From: Atascadero, CA Member No.: 3,117 Region Association: None  |
Came around a hard corner Saturday and the car just died, figured out pretty quick the fuel pump wasn't running so hot wired it to the battery and drove home. after some troubleshooting with a volt meter I determined that ground III on the relay board wasn't grounding, so I ran a ground wire from that to the post ground above the relay board and fuel pump is back working, although it no longer runs for 1.5 seconds like it used to just runs when the key is on.
Looking at Pelican wiring diagrams I can see ground III runs to Pin 19 on the ECU, I have yet to take the ECU harness out and test continuity on that wire (will do so tonight after work) but I can't wrap my head around how it just went bad (other than its 42 year old wiring) (IMG:style_emoticons/default/WTF.gif) Other than that no other negative symptoms when this happened (IMG:style_emoticons/default/confused24.gif) -Luke |
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Posts in this topic
LukeD Strange Fuel Pump Ground III Problem Aug 31 2015, 02:58 PM
SirAndy How does the bottom of your relay board look? They... Aug 31 2015, 03:54 PM
LukeD
How does the bottom of your relay board look? The... Aug 31 2015, 06:48 PM Jeff Bowlsby Maybe a corroded electrical terminal? :dunno: Aug 31 2015, 04:36 PM  |
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