02 sensor ?
06-26-2010, 07:36 PM
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02 sensor ? i put longtubes and a ory on my car, i zip tied the rear 02's up and one fell and got messed up. so after replacing it my cars running like ****. what do you do with rear 02's normally when u put an ory in? and what will make my car run normal again? thanks.
06-26-2010, 09:56 PM
#2
Rear O2's are normally removed when doing the LT swap.
Read, Read, Read some more, ...
How messed up? Burned thru wires & got them crossed?
New one should have been a plug-n-play. Was it?
Seriously, most people have them 'tuned out' by a PCM change in the tune. Got a local dyno shop that can help with tuning?
Or they use O2 Simulators. 'O2 Sims'. All they do is fool the system into a false 'Everything Okay' signal.
Unless the wires were burnt thru & crossed or soemthing, I can't believe that would be the reason for the car to run like crap.
Also, since LT's are 'External Engine', ..., you'll probably get a move to that forum, or more likely to the 'PCM & Tuning' forum.
Read, Read, Read some more, ...
How messed up? Burned thru wires & got them crossed?
New one should have been a plug-n-play. Was it?
Seriously, most people have them 'tuned out' by a PCM change in the tune. Got a local dyno shop that can help with tuning?
Or they use O2 Simulators. 'O2 Sims'. All they do is fool the system into a false 'Everything Okay' signal.
Unless the wires were burnt thru & crossed or soemthing, I can't believe that would be the reason for the car to run like crap.
Also, since LT's are 'External Engine', ..., you'll probably get a move to that forum, or more likely to the 'PCM & Tuning' forum.
06-27-2010, 10:45 AM
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my car had them tuned out and was running great then the passenger side 02 wires got cut and my servise engine light popped up so i changed it out and hasnt gone back to normal, is there anyway to reset the codes?
06-27-2010, 12:06 PM
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i didnt know u were sapposed to unplug them, i disconnected the battery and that shut off the service light but as soon as i shut it off it comes right back, i took it my local autozone cuz the y can clear codes but their scanner couldnt find anything.
06-27-2010, 01:12 PM
#6
TECH Apprentice
Like PontiacFan said, with most headers installs, you don't use rear o2s. For instance, I got Pacesetter Headers (probably most common around these parts), and they don't even have the bungs for the rear O2 sensors, so there's nowhere to plug them into.