2004 Dodge Truck O2 Sensors

2004 DODGE TRUCK
65,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MANDITO68
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  • 1 POST
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.
Dec 23, 2009 at 6:43 PM
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CH112063
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  • 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.
Dec 23, 2009 at 10:03 PM