Valve clatter and P0171 code
#1
08-31-2015, 10:27 PM
Join Date: Feb 2010
Location: Texas
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Valve clatter and P0171 code
2001 5.9L, Ram 1500 4x4, 200k miles
I've been having some loss of power and some valve clatter when I step on the gas at highway speed. Today I got the too lean, bank 1, sensor 1 code. I changed the O2 sensors about 5 years ago (maybe 50k miles). I think I put in NTK sensors. I've read a bad O2 sensor can cause this code. Should I start with replacing the upstream sensor or is it likely still good?
How long do these trucks go before before they need a valve job?
I've been having some loss of power and some valve clatter when I step on the gas at highway speed. Today I got the too lean, bank 1, sensor 1 code. I changed the O2 sensors about 5 years ago (maybe 50k miles). I think I put in NTK sensors. I've read a bad O2 sensor can cause this code. Should I start with replacing the upstream sensor or is it likely still good?
How long do these trucks go before before they need a valve job?
#3
09-01-2015, 12:42 AM
Unless you have a California truck with 2 upstream O2 sensors, there is only one upstream sensor bank 1, sensor 1. If you think you have a leaking intake that would be the place to start. Not sure if it would cause a lean mixture since the fuel is port injection.
