Question about 2002 Mitsubishi Lancer

3 Answers

Gdi 1800 cedia wagon-odometer 80,000km exact, starting, no power

4g93 gdi engine starts
wont rev above 3000 rpm-starts misfiring
cuts off as i mash the x
sounds like starving for air
scan tool once said fuel rail sensor
swapped - air flow sensor, fuel pump & fuel pump (tank)
is there a fuel pressure boost pump on the engine?

Posted by clifton_lawr on

  • 3 more comments 
  • jonathanbran Jan 12, 2009

    Have the same problem just as you described, but can't find th esolution, so please assist me if you can.

  • Anonymous Mar 13, 2009

    Same here

  • jason eulette Jul 23, 2013

    replace the computer

  • Joseph Melville
    Joseph Melville Oct 23, 2014

    I know alot about these cars because i fix them, at the end of the intake cam where there is the star like end that engage the HPP high pressure pump, over time that gets worn out and the cam need replacing, so in other words the pump is no longer being pumped, so the car is running on the fuel tank pump if you turn on the AC and it gets worst them you should be looking and the gdi pump or the intake cam

  • Peter Kalanzi Dec 06, 2015

    Hi, I have a 2005 Mitsubishi Lancer Wagon, 4G93. It wont rev over 4000. It has no error codes, I changed the Mass Air Flow intake sensor and no change.

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3 Answers

Joseph Melville

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Hi it sounds like your high pressure pump needs replacing. the pump can be repaired but you will have to find someone who knows about it, i fix a lot of them before. there is a spring that pushes out the piston in the pump so it can compress the fuel that spring losses its ability to extract the piston back out. i have pictures of one if anyone wants to see

Posted on Nov 12, 2014

  • Earl Dac
    Earl Dac Dec 30, 2015

    fotos!!

  • Dominic Gomes
    Dominic Gomes Apr 04, 2018

    Hi Joseph, I seem to have the same problem. Kindly share these pictures. Thank you

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Anonymous

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I can confirm with u that the end of the intake camshaft is broken...tat's why the fuel pressure is low.intake camshaft attach to the fuel pump to boost the pressure.for sure u won't believe what i say...i've seen more than 20 gdi model having tis problem..

Posted on Nov 18, 2011

  • Martin Nyagah
    Martin Nyagah Jan 13, 2018

    This is true. My gdi had a broken camshaft. Started up but couldn't accelerate beyond 3rpms.

  • Anonymous Apr 04, 2018

    Hi Martin, I presume you are in Kenya. I need help on the same. Kindly buzz me on 0722273633 then we can discuss. Thanks. Dominic

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Anonymous

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  • 47 Answers

Yes

Posted on Jan 03, 2009

  • sonesh_kumar Nov 03, 2010

    Not helpful what was the solution?

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