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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 11-14-2010, 01:04 PM   #1
Agent WD-40
 
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Question Loose 02 sensor on long tubes

I was looking around under the car today and noticed that the front drivers side o2 sensor was loose (I have Stainless Works catted long tubes). I tightened it back up and all seems fine.

What sort of things would having a loose o2 sensor do to the car? Would it cause it to run more rich/lean or anything like that? Would I have seen a code if it was leaking enough air to really cause a problem (I do have a tune as well)?

It was loose enough that I could easily spin it with my fingers but it still had enough threads in that it wasn't about to fall out either.
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Old 11-14-2010, 01:40 PM   #2
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Funny you bring this up. I don't know the answers but I did just get an engine light. I have Stainless works long tube headers and a tune also. Yesterday I threw some codes for running lean. I'm going to check the car out today and see if anything is loose on it.
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Old 11-14-2010, 02:35 PM   #3
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Quote:
Originally Posted by Lnch Mny View Post
Funny you bring this up. I don't know the answers but I did just get an engine light. I have Stainless works long tube headers and a tune also. Yesterday I threw some codes for running lean. I'm going to check the car out today and see if anything is loose on it.
I didn't see any CEL on mine... I just happened to notice it was loose.
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Old 11-14-2010, 10:32 PM   #4
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IT would make it run slightly richer, due to air leaking in creating a (simulated) lean condition, the car would add fuel.
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Old 11-15-2010, 06:53 AM   #5
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When I had my LT's installed the threads on my drivers side sensor were bad right from the factory. It was a PITA to get it to screw back in again. It's not the tightest seal and I swear I'm leaking air through that sensor. I have an SCT tune and had the codes removed but it did throw code P2272 which was 02 sensor signal stuck lean . Then I read page 68 of Camaro Now magazine which on #5 confirms how bad the threads are on the sensors.
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Old 11-15-2010, 09:59 AM   #6
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I went thru the same thing on my 2001 Camaro. I had one O2 with bad threads.
I replaced it myself and put the same stuff as I put on my spark plugs, Anti-seize compound.

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Old 11-15-2010, 11:13 AM   #7
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I'll have to take a closer look at that now. Anybody have a price and part number for that o2 sensor?

I did sort of think I was running a bit rich, but I wasn't sure if it was the tune or the long tube headers and high flow cats or some combination of the two.
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Old 11-15-2010, 08:29 PM   #8
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I've got two extras laying around if you want one, maybe 1000 miles on them. I dont think the rears are any different physically then the fronts.
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Old 11-15-2010, 08:45 PM   #9
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Quote:
Originally Posted by Ovenmitt View Post
I've got two extras laying around if you want one, maybe 1000 miles on them. I dont think the rears are any different physically then the fronts.
Doing a parts search online shows 2 different part numbers for the V8. One front the other rear.

I might take you up on that. I still need to get under my car a check though.
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