1994 Honda Civic fuel pump relay location and pump testing

Рет қаралды 149,765

John Edwards

6 жыл бұрын

Relay location and pump test

Пікірлер: 30

@TheGuyWithNoSubsForAReason 11 ай бұрын

Nice video. My issue is, randomly the fuel pump won't run. I hit the tank from under the seat and got it to start, so I figured the pump was going bad. However, the next 6 times it happened, hitting the tank did nothing. Randomly it would work regardless of what I did. I found the fuel pump relay before finding this video.. if I just move the relay around, it will allow me to start the car 5 out of 5 times. So at this point not sure if its a wiring issue or relay is going bad. Seeing your test wire will help me a ton. Let's see if I can get the test wire to do the same, if not, replacing the relay I will do! Thanks!

@sheeshalready 2 жыл бұрын

Nice and simple video with details. When the weather turned cold, I can "hear" that the priming is intermittent on my 92 DX. Now, to attack that relay! Thanks!

@smallgreentreefrog 3 жыл бұрын

On my 1993 Civic del sol SI, this is exactly the same, the same cluster of wires with the same colors. It seems this is a common point of failure of these cars. If a jump wire gets the fuel pump to kick on, you've probably narrowed down your problem to that relay. You can remove that relay and bake it at 380-390F for about 8-9 minutes on top rack in oven on some folded up tin foil (that can get the solder points to rejoin and temporarily make contact again) let it cool, reinstall. It worked for me for almost a year, until it failed again, at that point I just replaced the relay.

@3dTinker Жыл бұрын

How effective id this ?

@jayvalderrama6610 6 жыл бұрын

good. job it worked great.

@campingwiththeadamss8552 Жыл бұрын

Thank you!!!!

@rolandopacio7857 11 күн бұрын

Ahh sir Edwads coul please make a video where the starter Relay of 1994 honda civic Loacation is? Thank You

@aaronweise360 6 жыл бұрын

Trying it now on my 96 civic but nothing is hapening. Does this mean my fuel pump is dead? Followed every step you mentioned. Except my wiring harness for the main relay has different color arrangements. The live wire is black and white, and theres 3 yellow and green wires from the relay harness.

@ilovejamaica Жыл бұрын

Thanks man

@O-cDxA Жыл бұрын

Thanks !

@1camelrider 3 жыл бұрын

Great!

@bmxenthusiast5348 Жыл бұрын

Nice kill switch 😂

@shanekinder6576 5 жыл бұрын

1995 Honda civic fuel pump replacement

@3ad3pt3 4 жыл бұрын

What’s the reason for replacing tank !!!

@johnedwards7466 4 жыл бұрын

Tank was leaking at the seams.

@smallgreentreefrog 5 жыл бұрын

Can wiring this connector from the battery line to the pump be a temporary fix to operate the car or will the engine not get the right amount of fuel and operate not optimally or waste fuel?

@johnedwards7466 5 жыл бұрын

In jumping the connector, you are making the connection the relay normally does. But, in unplugging the relay, you also disconnect computer power. See below. Thus, you can operate the car. However, this also bypasses all safety control of the fuel pump. In case of an accident, the fuel pump would continue to run even if the engine is turned off. So, I would only recommend doing this to get the vehicle moved to where you will be diagnosing and repairing it. The fuel pressure is controlled by a mechanical pressure regulator in the intake manifold area. If that is bad, or the fuel filter is clogged, or the pump itself has weak or low output, the vehicle still may not run when you jump the relay. Note that there is another wire that is energized by the relay that also is turned on which goes into the computer. There is a yellow and white wire and a yellow and black wire that will also need to be jumped to start the car since the relay would be unplugged.

@smallgreentreefrog 5 жыл бұрын

@@johnedwards7466 So when you stuck your tester in the wiring (my wires are the same color as yours for these two) one is continuously live for the battery line, but shouldn't the other one be live also when you turn the key to the on position for at least a few seconds as the fuel pump should be triggered to prime? This one isn't live for me, even when turning the key...

@johnedwards7466 5 жыл бұрын

Paul, I amended my reply to talk about the computer power that has to be energized akso when the relay is unplugged. Read again. Thanks

@johnedwards7466 5 жыл бұрын

In regards to your question, the wire going to the fuel pump has no voltage. It only gets voltage when you jump it. The computer normally runs the pump, via the relay, for a couple seconds with key on.

@johnedwards7466 5 жыл бұрын

I highly recommend finding and looking at the factory wiring diagram.

@TheTzr250 4 жыл бұрын

Computer capacitor Is the problema

@wheellights5406 5 жыл бұрын

nope not on a 93 honda civic coupe. its black

@aaronweise360 6 жыл бұрын

Now my continuity tester doesnt light up on the harness anymore. :(

@johnedwards7466 6 жыл бұрын

Aaron Weise check fuses. Always a good idea to look up the wiring online or at a library if they have it available.

@aaronweise360 6 жыл бұрын

John Edwards all fuses are good.

@johnedwards7466 6 жыл бұрын

Aaron Weise did u check the under hood fuses? Also, check wiring schematic either online or at the library. There is a power distribution fuse box under the hood. This has the bigger fuses and relays in it. It is important to look up the wiring schematic. I can't stress this enough.

@aaronweise360 6 жыл бұрын

John Edwards yes. I checked those as well