Rear O2

[bootlife]

I just got a trinity, soon as tech guy get me right ill put it in, My ? is, Iv been gettin 4 codes on the two rear o2s, B1 Censor 2 heater, B1 censor 2 O2. B2 censor 2 Heater, B2 censor 2 O2. Iv replaced both with new 1s with dealer parts, replaced fuel cap, and also replace EGR censor. still getting code. Any ideas on what it could be? and Whats the down side and upside to O2 delete? 2000 Chevy Silverado 5.3L, Cold Air, Flowmaster muffler, stock pipe. I also checkd for a leak in the intake and so on, nuthing there. replaced the intake gasket for GP. Any help would help my wallet lol thanks.

[06MonteSS]

sounds like you don't have your rear O2 sensors connected to the wiring harness....

or if they are, sounds like you have a wiring issue.. check the wiring harnesses/plugs... make sure no bent/broken/burnt wires... and make sure the o2 sensors are plugged in...

you have headers on the truck?? still have the catalytic converters on the truck??

[bootlife]

Wires are good, Traced them all the way back up the harness, no headers, plugs are good, they click and lock on. I do have cats on the truck they are the stock 1s. poss bad cats? theres 192000 miles on the cats, motor has 60000 miles on it. it takes about 100 miles of norm driving to make the check light come back on with the codes. I have a scanner that can run live data, I just dont know what the range should be on the sensors. so Its basicly french to me lol