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2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
Hey I got a CEL today and got it checked at Advance Auto. The reader showed it was an o2 sensor. Bank 1 Sensor 2 high volts. Is this the one before or after the cat? Does this merely mean the cat is bad or do I have other problems like clogged cat, etc.....
Should be your pre cat sensor. If your cat was clogged, you would know, because it would cause your engine to misfire in most cases. Also, it would rattle like a bunch of bolts are loose. Specifically, what code did it throw?