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Engine wont go over 2500 RPM's

Tiny
SHWEMAN
  • MEMBER
  • 1999 MITSUBISHI PAJERO
  • 70,500 MILES
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.
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Wednesday, January 4th, 2012 AT 3:15 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
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
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Wednesday, January 4th, 2012 AT 6:25 PM
Tiny
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
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Sunday, January 8th, 2012 AT 6:05 PM

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