02 sensor ?
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.
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.
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?
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.
TECH Apprentice
Joined: May 2004
Posts: 318
Likes: 14
From: Chicago, IL
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.
