2004 Dodge Truck O2 Sensors

Tiny
MANDITO68
  • MEMBER
  • 2004 DODGE TRUCK
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 65,000 MILES
I have p0051 code and have change two o2 sensors before and after catalytic converter and change the converter, but still send me the same error, at low revolution some times have a engine failure and shut down, when this happened have put my hand in to muffler and field a little sucction, thanks.
Wednesday, December 23rd, 2009 AT 6:43 PM

1 Reply

Tiny
CH112063
  • MECHANIC
  • 1,320 POSTS
If you can, try testing fuel pressure, it may be a little low. A clogged filter or fuel pump failure will cause this. A vacuum leak, or valve timing problem can also cause the symptoms your talking about. You can buy a real fine gauge for testing its pressure. Hope it helps you. There is a good explanation on o2 system requirements, these are necessary for engine performance and emission requirements, look under the 'site menu'. Ok? Hope it works out ok.
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Wednesday, December 23rd, 2009 AT 10:03 PM

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