Hmmm, I also have an '05 Magnum RT AWD which set off O2 related codes when I first got it.
I'm not buying the lazy sensor theory. That's just one of the reasons we have 4 O2 sensors (the other being ongoing trim adjustments and cat performance monitoring).
The original connectors were of a poor design and if they did not have silicone grease smeared inside, they would allow water ingress. Mine were so bad that water actuall ran out of the harness when the sensors were popped off.
Blew it out with an air gun, added the grease, and no more problems!!!

Originally Posted by
Blkmagnum
I have an 05 Magnum RT AWD that has had a constant engine light issue for the past year or so. I have had it to the dealer at least 7 or 8 times and it continues to come on. I have had the O2 sensors, O2 harness, and one other thing replaced but still no luck. The only mods I have are an intake and I cut the suitcase out and replaced it w/ flowmasters. Any thoughts?
2002 SeaDoo GTX RFI 800 SDI
2004 SkiDoo 600 H.O. SDI
2005 Magnum RT AWD
2008 Kawasaki Ninja - SOLD
2009 Toyota Camry Hybrid
2011 HONDA CBR RA
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Why do I get the feeling more infractions are coming?
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