Question about 1996 Mitsubishi Eclipse

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1996 mitsubishi eclipes i dont have 12 volt at fuel pump is very wick

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Check the fuel pump relay. The fuel relay is located on the firewall on the drivers side in a bank of 3 relays its the one closest to passenger side.If relay has gone bad you must replace it.

Check the battery output voltage also(I think you would have done this already).

Posted on Mar 31, 2011

  • INDIRA KUMAR
    INDIRA KUMAR Mar 31, 2011

    Usually when you start the vehicle the fuel pump relay must produce a buzz sound if it is working fine.

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Having trouble installing new mechanical fuel pump on 87 mitsubishi mighty max. Anyone have tips or tricks? Thanks.


They sell a universal fuel pump external try thar install it out side of your fram two wires red 12 volts with key on black go to ground on the battery good luck

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Fuse for Mitsubishi fuel pump


It is critically important for turbocharged models that the fuel pump receive the maximum amount of voltage available from the charging and wiring system. The alternator will try to maintain about 13.5 volts into the system. Resistive losses along the current path to the pump will reduce the voltage at the pump to something less than 13.5. If there are less than 12 volts at the pump, the amount of fuel flowing may be much less than expected and perhaps enough less to create lean air-fuel mixtures under heavy boost.

The instructions below show you how to bypass the resistor and relay that the turbocharged 3S models use to reduce voltage to the pump at idle. Please read through the instructions and look at the pictures before attempting this procedure. Before I did this relay/resistor bypass I measured the voltage at the pump using the method shown on my web page 2-fuelpumpvoltage.htm. At idle the pump was receiving about 6.7 to 7.0 volts. I saw from 10.6 to 10.8 volts as boost began to build and then watched that number drop to 10.2 to 10.3 volts as boost hit 15 psi or so and RPM approached redline. After performing the relay/resistor bypass I remeasured the voltage at the fuel pump with the following results.

Cold idle: 11 volts
Warm idle: ~10.6 volts
Warm idle after radiator fan kicked in: 10.35 - 10.55 volts
Acceleration and boost: ~10.5 volts

Feb 02, 2012 | 2000 Mitsubishi Galant

1 Answer

No fuel coming to the fuel rail. is it a relay, or fuel pump problem


  1. Check the power going to the fuel pump. If it gets around 12 volts when the key is turned to the On position, replace the fuel pump.
  2. If the fuel pump is not getting around 12 volts, check and replace the fuse for the fuel pump.
  3. If the fuse is fine, replace the relay for the fuel pump.

Feb 18, 2011 | 1994 Mitsubishi Expo

1 Answer

Mitsubishi eclispe 2001 rs won't start theres no spark and dont hear the gas pumping


change the pcm relay or fuse. this relay supply 12 volt to fuel pump and ignition coil. go to the dealer and ask for the diagram for pcm relay and read it carefully or ask a friend to help you. check the fuse that supply 12v to the relay. mechanic shop will charge you for big price for electrical problem. most pcm relay is near the car computer at passenger side.

Jul 11, 2010 | 2001 Mitsubishi Eclipse

1 Answer

How to check electrical problems whit the fuel pump


first turn the key on and listen for the fuel pump to come on for 15 sec.this is to prime the system before you crank the engine.no sound,with only a rubber mallet( no metal hammers )hit the bottom of the gas tank,no fuel pump operating go to the fuel pump relay and remove then test for (2) 12 volt power supplies with key on,if ok check ground at relay if okay remove gas from tank and drop gas tank to check for voltage at pump.replace pump if 12 volts is present.

Oct 23, 2009 | 1996 Chevrolet Cavalier

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.

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some models of cars use injector spider where fuel is fed into it by one hose and it desperses the fuel to cylinders some hoses may have been damaged

Aug 05, 2009 | 1996 Mitsubishi Eclipse

1 Answer

1996 f150 fuel pump


Hello;
You may have a break in the wire inside the tank to the fuel pump. I have seen the wires disconnect as the pump is installed.
Rich
RPM Northwest

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1 Answer

Saab 900 1996 wont start spark but no fuel coming through from pump


Replace the fuel pump. First though make sure your are getting power to your fuel pump. You should have at minimum 12 volts DC. If you have volts then it would be a sending unit problem if no volts then the pump has gone bad and needs replaced

Apr 18, 2009 | 1996 Saab 900

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