02 Explorer P-1152 Code
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Joined: Jan 2024
Posts: 6
02 Explorer P-1152 Code
My '02 Explorer with 265,000 miles is now giving me a P-1152 error code (Lack of HO2S21 Switches Sensor Indicates Rich). Recently, I have replaced the MAF sensor, the idle air control valve, and the upstream and downstream oxygen sensors (bank 2). The vehicle has started to periodically idle just a little above normal in a pulsating type fashion and on occasion, it will stall out when initially putting it into gear. Not sure where or what to look at next. Any advice would be appreciated.
Last edited by rdcopps; May 14, 2024 at 06:52 AM.
Senior Member
Joined: Jun 2010
Posts: 16,529
The right way to approach this is to look at the data stream info and that requires a capable scan tool.
If the vehicle computer cannot correct the mixture problem the code comes up.
The data stream info provides all the operating parameters so they can be examined and determine where the fault might be located.
If the vehicle computer cannot correct the mixture problem the code comes up.
The data stream info provides all the operating parameters so they can be examined and determine where the fault might be located.
Thread Starter
|
Junior Member
Joined: Jan 2024
Posts: 6
The right way to approach this is to look at the data stream info and that requires a capable scan tool.
If the vehicle computer cannot correct the mixture problem the code comes up.
The data stream info provides all the operating parameters so they can be examined and determine where the fault might be located.
If the vehicle computer cannot correct the mixture problem the code comes up.
The data stream info provides all the operating parameters so they can be examined and determine where the fault might be located.
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