Question about 1999 Mitsubishi Eclipse

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Troubles starting and then dies after it warms up then stalls will not start unless you spray starting fluid then it will start again

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  • Mitsubishi Master
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Run the fault codes
look for problem with injectors and wiring and low fuel pressures.

Posted on Jun 22, 2015

Testimonial: "would fuel pressure regulator be the problem if so where is it located i put a different fuel pump in it still does the same thing"

  • Bill Boyd Jun 22, 2015

    it is always best to follow the answer ---have the fault codes read first--it does away with costly guesses
    have a pressure test done on the fuel system as that will reveal faulty regulator , pump and filter problems.

  • Robert Wood
    Robert Wood Jun 22, 2015

    Like Bill said, the codes can point you to the problem area or circuit. Beats chasing ghosts all day .

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Posted on Jan 02, 2017

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motor1258

Mike Butler

  • 6674 Answers

SOURCE: it wouldnt stay running

Did you try changing fuel pump relay?

Posted on Jun 07, 2009

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Related Questions:

1 Answer

How do i know what to fix?


You can't rule that out, a computer failure, but some testing would have to be done to truly determine the cause. The computer should send a signal to the fuel pump relay to turn the fuel pump on, both at key turned to on, and when key is in start-cranking the engine over. If you have to use starting fluid for hot restarts as you described (will it stay running then after starting it with the fluid?)...then it seems to be a fueling problem. I would say check fuel pressure, auto parts stores rent or loan them. It may be, for whatever reason, the pump is not being turned on through the fuel pump relay when it won't start without starting fluid.

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I had the exact problem with my 1993 chevy c1500. I found that the IAC was sticking so the engine would die at idle after warming up and the ignition module was pulsing the ECM intermittently after the engine warmed up so the fuel pump wasn't being turned on after the engine died....I replaced the ignition module and the IAC valve and all is good. I don't know if testing the ignition module reveals that it isn't sending pulses to the ECM.

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1 Answer

Quits after warm up wont restart


sounds like you have a fuel pump problem, fuel pumps will usually get hot and then shut off allowing it to sit 30 mins lets the pump cool down allowing it to start pumping, the way you can test it is get a can of starting fluid the next time it quits raise your hood and spray some fluid down into the throttle body and if it starts and then dies it is most likely your fuel pump, hope this helps.

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1 Answer

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I would start by getting a diagnostic code reader and checking if any codes are set when it dies. Misfire codes could mean a bad coil. Other codes, you'll have to check online or at an auto parts store for possible causes.

In the absence of any codes, it's hard to say, but I would start by checking the fuel injector. Take a can of starting fluid with you and when it dies, spray some in the throttle body and see if it starts up for a few seconds. If it does, the injector is likely the culprit.

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Try checking the exhaust flow when someone else is pushing down on the gas petal.The farther the petal gos down,the more exhaust should be coming out. I replaced my catalitic convertor at 44000 miles, it was clogged. I had them install a high flow type.

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1 Answer

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try the fuel filter.it will allow it to run but sometimes causes vehicle to stall or run rough

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