Question about 1992 Toyota Pickup

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My 1992 toyota 4x4 truck has no power to fuel pump. the fuel pump works when you jump Fp to B+ on the data link connector with key on engine off.

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  • stevmgar
    stevmgar Sep 09, 2012

    Yea I have the exact same porblem, and can not figure out what to do next, I changed the relay

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Check the fuel pump relay.

Posted on May 01, 2010

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1 Answer

Which is the fuel pump fuse?


what country, ? and what engine option? ????????????
the pump may not have 12v power until cranked, is engine dead/?
post the systoms so we can understand the context ....
or just curious.
alldata.com has the drawings.

here, ill look for you. USA, and take wild guess on engine.
ok, the toy has a test port conn.
key on, check pressure after.....doing....
Using a jumper wire, short both terminals of the fuel pump check connector. The check connector is located near the air cleaner. Connect the terminals labeled FP and +B.

reasons for pump failure.
  1. If the fuel pump failed to function, it may indicate a faulty pump, but before removing the fuel pump, check the following items within the pump system:
    1. All fusible links
    2. All fuses (EFI-15amp and IGN-10.0amp) "names"
    3. H- fuse (AM2 30A)
    4. EFI main relay
    5. Fuel pump
    6. Circuit opening relay
    7. All wiring connections and grounds related.

i just check pressure cranking, (rubbers meets rode, logic)
if fail, to have 12v at pump i work backwards.
if 12v at pump, then pump is dead if pump is dead.
simple logic, here, and 100% effective.....!

toy spec on pressure is.
The fuel pressure should read 38-44 psi (265-304 kPa).
cranking
and running. with MPI engine the pressure will drop 10psi
due to vacuum reg. rules.......etc....



Nov 30, 2013 | 1991 Toyota Corolla

1 Answer

1984 toyota pickup 22re fuel injection is not getting fuel to the cylinders


Most likely a fuel pump problem, locate the diagnostic check connector under the hood and turn the key on then put a jumper wire between the terminals FP and B+ if it start then the fuel pump is ok and the problem may be the EFI relay or efi fuse

Sep 28, 2012 | 1984 Toyota Pickup Deluxe

1 Answer

2003 eclipse cranks but will not start ign. ok, fuel pump does not run when key is turnned on, but runs when jumped staight from battery. scan tool will not connect. data link has power and ground. check...


You might want to double check that connector to the fuel pump. These cars are known for melting the inside of the connector and causing a poor connection. You'll need to remove the pump also to check the inside of the pump connector. Look for a dark brown discoloration. If you do have this discoloration, replace the pump module and the electrical connector. You may want to test the voltage to the connector to make sure that you have 12 volts going to the pump

Aug 16, 2012 | 2003 Mitsubishi Eclipse Spyder

1 Answer

Replaced the fuel pump in my 1990 toyota corrola and it still won't work. Is there a safety switch or something that I need to flip? All the fuses work.


There is a fuse it is listed as EFI.Also check the main fuse. And the fuel pump relay. Make sure its not open have someone cycle the ignition switch when you are near the fuel tank do you hear the fuel pump come on? If this method check out and still no fuel pump action,let get you a tool.get a paper clip.find the DLC it in the engine compartment (You are a OBD 1) on the cover match up the mark to the DLC pins there are 2 row a single row and a 3 row. Where is says FP is fuel pump where it says B+ is battery voltage jump the FP and B+ together the fuel pump should turn on while you are jumping those 2 terminal together have someone crank the engine.Tip on you tool with key on as you jump FP and B+ and you see little spark voltage that a good sign the fuel pump has power if you dont your power is somehow disconnected

Feb 29, 2012 | 1990 Toyota Corolla

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

2 Answers

Need location of the fuel pump relay on a 1990 toyota pu, six cylander 4x4


The Feol pump/circuit opening relay is located inside the cab on a relay block either behind the glove bosx or the right kick panel, I'll see if I can locate a location diagram and post it in a follow up. In the meantime locate the diagnostic check connector under the hood,it's located near the right fender on a fuse block, open the cover and put a jumper wire between the terminals FP and B+, turn the key on and let me know if this makes the fuel pump run.

Oct 21, 2011 | 1990 Toyota Pickup

1 Answer

92 toyota pickup 22re no power to fuel pump. Truck runs for a minute on starter fluid. Put a jumper between fp and b+ and still nothing. Tried a multimeter on fp b+ and shows no power. All fuses look good....


fuel pump have only relay , working for afew secound only then off some type working only when engine is cranking , make sure when you can check power

Jun 23, 2011 | 1992 Toyota Pickup

1 Answer

1994 Toyota Camry 2.2 engine. Car stalled and won't restart, cranks good, seems to have good spark. Can't hear fuel pump running when cranking. The pump will run when I jump the +B and FP terminals in...


I would check your fuel supply. You may have a clogged fuel filter not allowing fuel up to the throttle body. It is best to check before the filter. Be careful that the pressure built up does not spray all over. If there is no pressure and when you turn the key on nothing you have a bad fuel pump. If there is pressure you probably have a bad fuel filter or a bad fuel regulator. Wish you luck!!

Jan 24, 2010 | 1994 Toyota Camry

2 Answers

I have no power to the fuel pump unless I jump at the diagnosis under hood. I have 12 volts to the circuit opening relay and with the key turned forward I also have 12 volts to and the leg on the co relay....


fuel pump only runs for 3 seconds or when the engine is running. Cycle key with meter hooked up or ear on gastank.. Listen and watch. for a quick 3 seconds.. The spark your experiencing is most likely your touching a ground connection. If you have 3 seconds of power then you prabably need a fuel pump.

Aug 15, 2009 | Toyota Pickup Cars & Trucks

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