Question about 1997 GMC Sierra K2500
P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1). You have a bad O2 Sensor. I dont know how your O2 sensors are labeled, but your local auto parts store should help you with that one. Good luck to you. Let me know if you have anymore questions.
Posted on Dec 07, 2008
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Posted on Jan 02, 2017
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