When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have an issue with the fuel pump not stopping after key is off. I unplugged the fuel relay and the pump kept going. Did I get the wrong relay? Theres two relays that I know of in the engine bay and I disconnected both (one near the wiper motor and one on the drivers side wheel arch) and the pump still ran. I then disconnected the oil pressure switch and it went off. I replaced the switch and the pump still ran continuously. I then pulled the plug off the oil pressure switch just a tad and the pump went off. I put the key to the on position and the pump cycled on for a few seconds and it went off. If I put the plug on the switch with slight pressure (all the way on and then a little slight pressure) the pump starts to run again. Do I have bad oil pressure plug? If so, where would I get another one or work around?
I then pulled the plug off the oil pressure switch and the pump went off.
If I put the plug on the switch with slight pressure (all the way on and then a little slight pressure) the pump starts to run again. Do I have bad oil pressure plug?
Yes
Hook the relay back up and leave the OP switch disconnected until you get a new one.
Pump will run from the relay only , the OP switch is there as a backup should the relay fail