Question about 1999 Daewoo Lanos

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No power is coming to the fuel pump except for the fuel gauge and i've check the relay and fuse all good.

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  • Daewoo Master
  • 1,098 Answers

Disconnect the fuel pump and check the wiring coming from the car's circuit and see whether you do have power. You use a tester by earthing the wiring side on the car and with the pointed side use it to check the wiring end to fuel pump. if you do not have any power at the cable and as you said the fuel relay,fuse are okay the you must go in the circuit wiring where somewhere you might have a broken or snapped cable.

Posted on Nov 03, 2012

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Posted on Jan 02, 2017

  • 164 Answers

SOURCE: i have a 2002 daewoo lanos fuel pump wont kick on

Ok all cars are computers now and that so nice cars more complicated. You need min hand held and hook up the pc to the car see if you get some code off the car give you some direction. Is it give you and error message ore as they used call dummy light on the dash
Auto zone does this for free or you can rent one from them i think ore buy one at wally word. Dont know this help you but at least the car might be able tell you what wrong.
Hey did you try disconnecting the battire cable to resent the computer on your car to see the pump kick in then.

Posted on Jul 26, 2009

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I have a 03 Hyundai accent I just replaced the fuel pump I have no power to the fuel pump I've checked the fuses and the fuel pump relay it won't start I'm not sure what to do next


Do you have a test light? If not, go buy a cheap $5 test light-one with a lead to clip to a ground, and with a needle type probe.
Pull the fuel pump relay out of the terminals it is plugged into-you need to check if the power feed for the pump is still available at the relay. Clip the test light lead to a ground and touch the test probe to the positive battery post-to check that your ground is good- tester should light up. Now touch the probe to all of the terminals that the relay plugs into. One terminal should have power with key off. If no terminals have power, you have lost the power feed for the pump. Double check all your maxi fuses in the power distribution box. Either a maxi fuse or a fusible link will be the power feed for the fuel pump relay.
If the power feed is there at the relay, try a new relay. If still no pump, a shop will probably have to check your fuel pump circuit.
Did you check for power at the fuel tank while the key was held in crank? When the engine is cranking, the fuel pump wire should have power. When the key is turned to on, the fuel pump should have power for about 2 seconds, to pressurize the fuel system. Then when key is turned to crank or start, the fuel pump should stay on.

Sep 07, 2013 | Cars & Trucks

3 Answers

94 ford ranger will not start unless I squirt gas into intake what can be the problem


ck your impact switch, reset if needed, it its good, fuse or relay, if power is getting to pump the pump may need replaced

Sep 01, 2013 | 1994 Ford Ranger Supercab

1 Answer

How to hot wire fuel pump for 97


How to
Hot Wire Your Fuel Pump With a Relay in the Trunk




Terry Littleton - tlnfm@peganet.com


You Will Need

Get 15 ft 10 gauge wire, 3 ft 14 gauge wire, and a Bosch 4 or 5
prong 30 amp relay. Any place that installs car alarms should have a Bosch
relay. Get a heavy 10/12 gauge wire 30 amp fuse holder. They can be found at
auto parts stores and come in the old glass or new plastic spade type fuses.
Make sure it is heavy wire and not like most that use like 14/16 gauge wire. You
will need 2-10 gauge butt connectors, 1-10 to 16 gauge butt connector, 2-10
gauge female spade connectors, 2-14 gauge female spade connectors, 1-10 gauge
and 1-14 gauge ring connector. Soldering gun, wire
protector.

Procedure



  1. Disconnect battery. Put a ring connector on one end of the 10
    gauge fuse wire and attach that to the post at the rear of the alternator. Run
    it over to the front of the drivers side valve cover and attach to a piece of
    ten gauge wire that you will run to the back of the car. I put mine inside the
    car and it was actually easier.



  2. Run it through the hole next to the powermaster where all the
    wires go through the firewall. I routed it over behind the emer brake pedal,
    down behind that kick panel, took off the sill plate and put it inside the
    plastic wire protector (it does come open, just a pain to figure it out). Take
    out back seat and run it from sill up to opening that goes into the trunk. There
    are other wires that do the same thing, just follow them. Bring wire down to the
    hinge support. There is already a hole right there to put a bolt and nut through
    to mount the relay. I had a radioshack relay but it broke so I got a
    Bosch
    and it seems a lot sturdier. Good choice.

  3. Just a word of caution. Follow the wires down to the side of the
    trunk floor. The copper colored wire is the one to attach the trigger wire to.
    It looks like bare copper wire but is actually coated. The coating is so hard, a
    regular scotch lock wouldn\'t make contack on mine, so I cut out a half inch
    section of the insulation and soldered the trigger wire (a small piece of 14
    gauge from the relay prong 86) to there. I wrapped it in tape and put corrugated
    wire guard over it.



  4. The ground wire from the relay (a small piece of 14 gauge from
    prong 85) can go to the bolt hole you use to mount it to the hinge support. Just
    clean off the paint first. Then hook up the 10 gauge wire from the alternator to
    post 30 on the relay. The remaining prong on a 4 prong relay is the "Power Out"
    that will feed the alternator voltage to the pump(s). If you have a 5 prong
    relay the two remaining prongs should be labeled 87 and 87a. One is the "Power
    Out" when relay is energized, the other supplies power when the relay is not
    energized. Use a test light to determine.



  5. Run the remaining heavy gauge wire from the "Power Out" prong
    (when energized) from the relay through the rear of the trunk to the fuel pump.
    Notice the plastic cover over the BIG rubber grommet that takes all those other
    wires from the trunk out under the back of the car? Forget about getting your
    new ten gauge wire through there. Just drill a hole big enough to run the wire
    through covered with some corrugated protector. I put mine right next to the
    rubber plug. Then run the ten gauge wire to the pump.



  6. The 3 wires going to the sender/pump are Black-Ground,
    Pink-Fuel Level Sender, and Brown/White Stripe-Fuel Pump motor. Cut the
    Brown/White stripe wire after the connector on the fuel pump side and attach the
    new ten gauge wire. Leave enough to reconnect stock later if desired. Put a butt
    connector on the old cut wire so it doesn\'t short on anything. I wire tied stuff
    up neat and used wire protector. If you have an external pump, you can run
    another piece of 10 gauge to it for power from where it splices into the
    original pump wire.



  7. Now the wire coming through the firewall goes over behind the
    drivers valve cover and along the back edge of it under the EGR tubing in wire
    protector and splices into the other fuse wire from the
    alternator.



  8. When you turn on the ignition, you should hear the fuel pump
    prime. The only problem I had was in the connection of the trigger wire to that
    copper colored wire in the trunk like I mentioned above.

Hope this isn\'t confusing. I did it this way to keep things neat
in the engine compartment.

Jun 26, 2013 | Cars & Trucks

2 Answers

Electrical prblem


There would be a fuel pump fuse, either under dash or under hood. Check that fuse, use the test light to see if fuse has power. If not, then it might be a fusible link or maxi-fuse that feeds the fuse panel. If fuse has power with key on, pull the relay, and use the test light and probe relay terminals, key off. One terminal should be hot at all times. If not, check for power loss between battery and relay terminal-possibly a maxi-fuse or fuse link.
If relay does have power to terminal, quickly check other terminals while someone turns key to on-for about 2 seconds, another terminal should show power-this would be signal from computer to turn the relay on to prime the lines and fuel rail. If you have that, plug relay in and cycle key. Does relay click? If yes, relay is working and problem may be at fuel pump connector. If relay is not working, but you have power to it, and the short signal from computer is there, then check the relay's coil side ground. Computer signals the coil side and the signal goes to ground from relay coil side.
Pull the relay and use a jumper wire from relay's hot terminal to fuel pump terminal-the wire to pump from the relay. If pump comes on, the problem is right there at the relay-either no signal from computer or the relay coil's ground is lost. If pump does not come on, again check connector at pump-that or the wire to pump[ has a problem.

May 12, 2013 | 2001 GMC Savana

1 Answer

I replaced my 97 s10's fuel pump checked the fuses &checked the relay & reset my computer changed my fuel filter disconected my security system & still can't get my fuel pump to co


The oil pressure sending unit could be bad. If your oil pressure gets below 7psi than it shuts off all power going to the fuel pump. It is screwed into the engine block just to the right of the distributor.

Oct 13, 2012 | 1998 Chevrolet S-10 Pickup

1 Answer

Dodge 1500 1995 pickup 7.5 volts to fuel pumpwill not start applied 12 volts pump runs book sayes pcm de-energize booth relayes and will not send proper voltage to fuel pump


There is a red and white wire feeding the fuel pump relay from a 30 amp fuse. Both the shutdown relay and the fuel pump relay are grounded by the PCM, so if the fuel pump relay is grounded it should be "on" and providing a direct link from the pump to that fuse.
You should have battery voltage on that 30 amp wire before the relay and then on the dark green and black wire going to the pump.
If you don't have battery voltage coming from the 30 amp fuse, the problem could be before the fuse.
That 30 amp fuse is hot all the time, so it is powered by a fuseable link coming off the battery.

Jun 24, 2012 | Cars & Trucks

1 Answer

2000 jeep wrangler won't start, good crank, no bus


Check fuses first, but could be needs new CPU

Jun 14, 2012 | 2000 Jeep Wrangler

1 Answer

Fuel pump won't run unless engine is cranking, but won't start


Are you sure it's running when cranking? It should have come on when key turned on.
This is for camrys up to year '91. It may apply in your '95, also. Check the 7.5 amp ignition fuse and the 15 amp EFI fuse and the EFI main relay, all located in the fuse box next to your battery. There is also the circuit opening relay tied in to fuel pump operation. It is usually found under center of dash. It is usually not the problem, but it is part of the checks for fuel pump operation.
If your car has a " check connector" or "service connector" (also called a fuel pump check connector) under hood on driver's side near the firewall (a little 1 inch cube with a cap on it), then bridge terminals +B and Fp with a jumper wire. Turn key to on (don't start car). The pump should come on. Listen for fuel return noise from the fuel pressure regulator, and verify pressure in hose from the fuel filter. If nothing, check those fuses above. Here is how power runs to pump: Battery to 40 amp main fusible link-to 15 amp EFI fuse-to EFI main relay-to circuit opening relay-to fuel pump-to ground. Ignition switch and the computer (ECU) work the relays to pass power to pump. Hope this helps some, Randy. Good luck.

Nov 10, 2011 | 1995 Toyota Camry

1 Answer

I am not getting a signal to my fuel pump, fuel pump relay nor the 10 amp fuel pump relay fuse. I have checked my wiring from the ECM to the FPR and it is good. Where does the power come from through the...


The fuel pump relay is powered by a fusible link connected to the starter solenoid on the positive battery terminal. That fusible link feeds the 10 amp fuse near the relay. You can test the fusible links with a 12 volt test lamp. If the fusible link test okay check for an open circuit in the wire between the link and the 10 amp fuse. Hope this gets you fixed.

Jul 01, 2011 | 1987 Chevrolet Corvette

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