2001 Honda Civic ECM or Fuel Pump Relay?

  • 2001 HONDA CIVIC

Electrical problem
2001 Honda Civic 4 cyl Front Wheel Drive Manual 133000 miles

Ok. So I was cruising along doing 55 and dropped it into 4th gear and that's when it all started. The tach and temp gauge shut off within a minute after starting and the car idles louder at the time it shuts off. Car drinks twice as much gas now. I can only do 10 mph per gear (10mph first gear 20 in second etc.)
I've tried hooking up a diagnostic machine at the dealership and they can't get any connection with the ecm. They charged me 170 bucks to tell me "well. It might be the fuel pump relay or the ecm. Then agian it might be something else" So i'm up poop creek without a paddle here. Any ideas? Oh. And I obviously need to check the F/P relay. Where would this be located? Any help what so ever would be greatly appreciated!

Do you
have the same problem?
Monday, March 31st, 2008 AT 1:42 PM

1 Reply


Do you hear the fuel pump come On if so check the fuel pressure-if not could be a fuse/fuel pump relay or the computer-

If it cranks over and refuses start do below

Get a carb cleaner and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel problem, check the fuel pressure to rule out the fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light.

Fuel pump and Injector/s checks out-start checking the ignition system-power to coil, coil/s itself, distributor pick-up, control module, Cam and Crankshaft sensors.

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems with compression and valves opening and closing at the wrong time

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Monday, March 31st, 2008 AT 1:57 PM

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