I just bought a used 2008 Dodge Dakota 4.7 V8 Auto from Cerritos Dodge. My truck has 35k on it and it started shuddering at part throttle then a few days later the check engine light came on. The code is P2096 Downstream fuel trim system 1 lean? The dealer changed an oxygen sensor and it was fine for a few days then the light came back on. Back to the dealer for 2 days and they still dont know what is wrong, so I am taking it to another dealer that is more reputable. Not fun to deal with crap like this 3 weeks after you get a truck Anybody else have this problem? If so how was it fixed?

Thanks,

 

Trouble Code: P2096
Downstream Fuel System 1/2 Lean
Trouble Code Conditions:Engine running in closed loop mode. Ambient/battery temperature above 20F (-7C). Altitude below 8500 feet. Fuel level is more than 15%. If the PCM adds downstream short-term compensation to long-term adaptive, and a certain percentage is exceeded for 2 tr
Possible Causes:

• Exhaust leak
• Engine mechanical problem
• O2 Sensor has failed
• O2 Sensor signal circuit or return circuit problem
• Fuel contamination

 

The dealer found the problem to be a small crack in the drivers side catalytic convertor and replaced it under warranty. Whew!