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the oil pressure sensor has a 3rd wire which feeds to the fuel pump .. If you turn the ignition key on and do not hear the fuel pump running for 5 seconds, replace that oil pressure sensor. That sensor does turn the fuel pump circuit off once oil pressure is acheive and the the computer switches the fuel pum relay on to take over running the fuel pump
there is not a fuel pump reset. but there is a fuel pump relay toyota calls it a circuit opening relay it is behind the right kick panel above the ECM, power comes from the ECMwhich gets its power from the ECM main relay.
try fuel pump relay first before pump look for fuses blown find the relay let someone cut key on & off while u r touching it if it clicks relay is good
The relay and fuse is located under the hood in the relay box. It will be labeled on the lid. If fuse is good, then test the relay. Pull it out and with a test light see if there is power. If there is then remember that one. Have some one turn the key on and find another power wire. There should be 2 powers.If there is only one power then there maybe a problem in the ignition switch. If there is 2 powers then you need to get to the top of the fuel tank and see if power is getting to the pump. The power at the pump will be there for only a few seconds once the key is turned on and then will drop off. Let us know how it goes.
Your have a Fuel Pump A Control Circuit /Open try these possible solutions. Using a OBD II scan tool. Free use at Autozone. Check operation of fuelpump. Remove the glove compartment. Turn the ignition switch to ON. CHECK: Connect terminal FC of the ECM connector and the body ground. Check for the fuel pressure in the inlet hose when it is pinched by hand. OK:There is pressure in the fuel inlet hose.At this time, you will hear a fuel flowing noise .OK. Check for starter signal circuit Check for ECM power source circuit, if no good Repair or replace.OK Check circuit opening relay, if no good Replace circuit opening relay.OK. Check voltage between terminal FC of ECM connector and body ground to do this Remove the glove compartment Turn the ignition switch ON. Measure the voltage between terminal FC of the ECM connector and the body ground OK: Voltage: 9 – 14 V OK. Check for open in harness and connector between EFI main relay (Marking: EFI) and circuitopening relay, and circuit opening relay and ECM. Check fuelpump, if no good Repair or replace fuelpump.OK. Check for open in harness and connector between circuit opening relay and fuel pump, and fuelpump and body ground, if no good Repair or replace harness or connector.OK Check and replace ECM. Good luck and I really hope this solves that problem you are having. Please rate me. If you need further assistance you can always ask me.
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