Going into limp mode

Tiny
BOSABOSS
  • MEMBER
  • 2004 FIAT DUCATO
  • 90,000 MILES
Van runs fine below 2000 RPM but soon as you put a bit of pressure on the accelerator over 2000 revs it cuts out or goes into limp mode. I have had a new fuel rail pressure sensor and a new fuel pressure regulator valve and its still the same, any help would be appreciated. Thanks
Monday, March 20th, 2017 AT 6:43 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Hello,

Lets run the computer for codes to see whats come up, here is a guide to get you started.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please let us know what happens.

Best, Ken
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Wednesday, March 22nd, 2017 AT 5:00 PM
Tiny
BOSABOSS
  • MEMBER
  • 3 POSTS
Had it on a diagnostic and it says fuel rail pressure sensor and the fuel regulator, changed both of these and its still the same unfortunately, and still comes up saying these have gone.
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Thursday, March 23rd, 2017 AT 1:56 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
It sounds like the fuel pump is going out not supplying the fuel system with enough pressure. Try to take a pressure reading to see if it is low. I don't know what the pressure should be if you find out please post it.

Please let us know what happens.

Best, Ken
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Thursday, March 23rd, 2017 AT 8:04 AM

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