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.
I replaced my O2 sensor with a kem parts replacement from rock auto. Now my CEL popped on code 21 wlwhich says along the lines that the sensor voltage is not fluctuating. I still have the old one. It is original tho. I need to take the rig back to the commiefornia referee tomorrow afternoon. Is it possible that the new one is just bad? Its my 94 ram 1500 Canada model. The O2 is 4 wire pre cat. Thanks.
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Yeah, I put the old one back in and it seems to be working, I failed the emissions test again, The hydrocarbons at idle were 105 and it needs to be under 100 to pass. I don't know what else to do to the damned thing.. I gave it plugs, wires, cap and rotor.. Now I'm just looking to get out from it.. I put it up on craigslist this afternoon for $1600, with a disclaimer saying it doesnt smog, and I've already got a couple emails.