Question about 1991 Ford Festiva

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No pwer to fuel pump replaced fuel pump and relay replaced ecu still no power to pump.

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Check the fuse. it should be in the side of the dash on drivers side.

Posted on Oct 08, 2009

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Fuel pump relay location on 1997 kia sephia 1.8L engine.How do I know where the fuel pump relay is located as none of them are marked or labeled?


Did you check the fuel pump fuse that is under the hood? I suppose that may not be labeled either. go to the Kia dealer and get that info where the relay and the fuse are.
If the fuse is good, the relay will have one "hot at all times" terminal. If your ecu (or pcm, whichever it is called) is working right, you can put your finger lightly on the relay, have a helper turn the key to "ON", and you should hear or feel the relay click, meaning it is energized and power should then be going to the pump. With key on, relay is energized by the ecu for 2 seconds to prime the line with gas. Then again relay is energized when the engine is cranking. Use a voltmeter and check for power at the pump with the engine cranking over. If no power, back to the relay for troubleshooting. But if there is power at the pump wire at the tank, and no fuel pump, then you almost certainly need to replace the pump.

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your problem Can be fuse /relay broken damaged corroded wire /connection

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2000 Kia Sportage ECM ECU Bad?


Check the pcm ground pins to make sure they are grounded. 6, 28, 34, and 55.


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1999 Honda Passport. I do have power to the ECU and Fuel pump relays but no power coming off the relay to feed the fuse


The fuel pump fuse? That is hot at all times. Look for a main fuse that the big ones some even have clear cap . You basically need to find the main power that feeds the fuse2_29_2012_4_40_22_am.gif

Feb 29, 2012 | 1999 Honda Passport

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FUIL PUMP DONT GET ANY POWER


The ecu might have gone bad, not supplying power to the fuel pump relay. If the check engine light does not come on, on the dash, when the ignition is turned on, then the ecu is in need of repair.

Nov 18, 2011 | 1995 Jeep Wrangler

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Starter motor went out on 92 5.0 ho replaced it and new battery, now fuel pump does not work I get a 542 code checked fuel pump relay and inertia switch both good fuse good


  • Code 542 indicates one of the following conditions:

Engine Starts:

· Fuel Pump secondary circuit shorted to power

· Fuel pump relay contacts always closed

· Open in fuel pump monitor (FPM) circuit between ECU and connection to POWER TO PUMP circuit

· Heated Exhaust Gas Oxygen (HEGO) sensor shorted to power

· faulty ECU

Engine Does Not Start:

· Open inertia switch or inertia switch circuit

· Open in or between ECU and fuel pump (This includes open in fuel pump brushes/windings)

· faulty ground connection at fuel pump

The easiest way to check this circuit is to go to the fuel pump relay. If the relay clicks when the key is turned to the "RUN" position, then the inertia switch circuit is ok.

The Pink/Black wire starts from the fuel pump relay and goes two directions. One side goes back to the fuel pump. The other side is the fuel pump monitor circuit and goes to pin #8 at the ECU. This wire should only be hot for a second or two when the ignition is turned to the RUN position.

The fuel pump relay receives power on the Black/yellow wire. It comes from a fusible link at the power distribution center. This wire should be hot at all times.

If all the above is working as designed, them you probably have a bad fuel pump.

Feb 13, 2011 | 1992 Ford Thunderbird

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No power to fuel pump


when u checked this u do realize the fuel pump only has 12 volts for 1 second then the computer turns it off unless the engine is started? let me know.

Dec 03, 2009 | 1997 Dodge Ram 1500 Club Cab

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Replaced fuel pump and relay , no pwer to fuel pump


Should be a fuse for the fuel pump (relay), check it.

Are you checking for power with a meter, or assuming since the pump does not run, no power?

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