engine wont go over 2500 rpm's

1999 MITSUBISHI PAJERO
70,500 MILES
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SHWEMAN
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  • 4 POSTS
I have Mitsubishi Pajero 2000 GDI 6G74 Engine. I check it with x431 scanner, P0190 FUEL PRE SEN is showed.Engine speed is stable at idle position but cannot rise over engine r p m 2500. How to repair this problem,please help me.I had replaced the low pressure fuel pump in the fuel tank but it is not ok.And then I cleaning the high pressure pump, it is also not ok.
Jan 4, 2012 at 3:15 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
There is a fuel pressure sensor in the fuel rail that wounds like it has gone out please check he connector because they get hot and melt.

Please let us know what you find. We are interested to see what it is.

Cheers

Jan 4, 2012 at 6:25 PM
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SHWEMAN
  • MEMBER
  • 4 POSTS
I checked out the sensor and it was unplugged somehow. I plugged it back in and all fixed once I cleared the codes.

Thanks for you help
Jan 8, 2012 at 6:05 PM
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