help w/ engine codes please
My in-law's 2004 grand is showing 3 codes. I already did some searching and found the following:
P0051 HO2S Heater Circuit Low Voltage Bank 2 Sensor 1
P0121 Throttle Position Sensor Circuit Insufficient Activity
P0152 HO2S Circuit High Voltage Bank 2 Sensor 1
My question is, how are they related and what is my first step in troubleshooting/repairing? Thanks
P0051 HO2S Heater Circuit Low Voltage Bank 2 Sensor 1
P0121 Throttle Position Sensor Circuit Insufficient Activity
P0152 HO2S Circuit High Voltage Bank 2 Sensor 1
My question is, how are they related and what is my first step in troubleshooting/repairing? Thanks
Thanks Trapper but I already fixed it. My father-in-law told me to just go ahead and replace the O2 sensor in question and the TPS since it has 100k on it. I picked up the two parts from the dealership this a.m and had them swapped out pretty quick. She runs and drives WAY better than it did and I haven't had any codes pop back up.
Old Skewl CF like a Sir
Joined: Feb 2008
Posts: 4,355
Likes: 3
From: Fort Myers, FL
Year: 1996
Model: Cherokee
Engine: 4.0L High Output OBDII
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