Question about 1991 Honda Accord

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How to fix low voltage at fuel pump

Testing the relay and replaced it

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  • Honda Master
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YOU MIGHT ALSO LOOK AT THIS ONE TOO:
JUST GOOGLE IT MANY VIDEOS ON THE SUBJECT.

Posted on Nov 30, 2014

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  • Honda Master
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You have a bad connection. Use a volt meter and trace it back until you find the correct voltage, the thing you just went past is the problem. If the voltage across the relay contacts is more then about 0.7 volats replace it.

Posted on Nov 29, 2014

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Posted on Jan 02, 2017

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SOURCE: have replaced fuel relay and tested pump but still

you have a fuse protecting the circuit. in your fuse panel how is it ?

hope2help shack

Posted on Apr 17, 2009

duane_wong
  • 6826 Answers

SOURCE: 1999 Honda Accord won't start. No fuel pressure,

The relay may be located in the under hood fuse/relay box.
Check your manual for the location of the relay, if listed.
Check for a sticker on the inside of the under hood fuse/relay box for a possible guide.

Posted on Jul 31, 2010

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I have a 1988 ford f150 and have non power to the fuel pump


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Hi. here are a few steps that will help you troubleshoot this device.

Step1 Go to the back of your carand take off the fuel filler cap. Ask an assistant to turn the ignitionon but do not start the engine. Listen closely for a brief, vibratorysound coming from the tank. If you cannot hear the sound, go to thenext step. Step2Check the fuel pump circuit fuse. It should be in the fuse panel underthe dashboard or in the engine compartment Verify that it is in goodcondition and the contacts are free from corrosion. If necessary,replace it and test the pump again. Step3Inspect fuel lines, hoses and connectors. Make sure hoses are not torn,bent or obstructed. Verify there are no gas leaks. Step4Locate the fuel pump relay. You might find it in the enginecompartment, at the driver or passenger side and close to thewindshield or at the front of the engine as part of a cluster ofrelays. Another common place is under the dashboard. Step5Remove the fuel pump relay. Ask an assistant to turn the ignition onbut do not start the engine. Using a test light, check for incomingvoltage at the relay connector. If there is no voltage, check for anopen or short at the wire between the relay and the fuse panel. Step6Jump the relay connector to apply battery voltage to the fuel pump.After the jumper wire is connected, ask an assistant to turn on theignition while you listen for fuel pump operation as described in step1. If the fuel pump works now, replace the relay and test again.Another alternative is to test the fuel pump relay for properoperation. Step7Locate the fuel pump connector at the back of the car and check forincoming voltage with a test light. While you check for voltage, ask anassistant to turn on the ignition but do not start the engine. If thereis no voltage, check for an open or short at the wire between the relayand the fuel pump. Step8 Check the power and ground connections at the pump and make sure they are good and free of corrosion. Step9Test the fuel pump. Apply direct voltage to the fuel pump. If youcannot easily remove the fuel pump through the trunk of your vehicle,you might want to take a fully charge car battery to the back of thecar. Raise the vehicle and secure it firmly on jack stands. Unplug thefuel connector and use a couple of jumper wires to connect the batteryto the fuel pump. If the pump does not work, replace it.

Please rate and god bless:)

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