Not one issue
What LT Headers do not give 02 sensor problems?
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From: Granby, MA
Cruise-In 1, 3, 9. 10 & 11 Veteran
Did you put your headers on? if so what did you do with your O2 while they were out? I replaced my rears with Bosch units and remember reading in the instruction paper that they, O2's, will become contaminated and not work properly if left exposed to the atmosphere too long. Don't know how much truth there is in that warning but it's a thought.
My 02's were not only "exposed" they had over 72,000 miles on them. I thought that they could be used again but understanding this new information....prolly was not a good idea.
Last edited by XtremeVette; Jul 9, 2008 at 08:02 PM.
Safety Car
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From: San Rafael CA
woah!!!!!!!!!!! hold on....thanks for this information. My 02's were "exposed" in my garage for over a month and a half! hmmmm might have a winner here. This is definitely news that I never heard before.....Again, thanks for the information!
My 02's were not only "exposed" they had over 72,000 miles on them. I thought that they could be used again but understanding this new information....prolly was not a good idea.
My 02's were not only "exposed" they had over 72,000 miles on them. I thought that they could be used again but understanding this new information....prolly was not a good idea.
Your O2 sensor's ceramic element is exposed to air 5 minutes (at the most) after you turn off your engine ....... people store cars and start them a year later and the sensors work fine.
Now, the fact your sensors have 72,000 miles on them MAY be contributing to your problem. They get less efficient over time and mileage (which is why the PCM does the lean/rich switching - to test them) ..... so if you want to spend the money, a new set of sensors can't hurt (well, other than your wallet).
Original Founding Member!
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From: Granby, MA
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Your O2 sensor's ceramic element is exposed to air 5 minutes (at the most) after you turn off your engine ....... people store cars and start them a year later and the sensors work fine.
Now, the fact your sensors have 72,000 miles on them MAY be contributing to your problem. They get less efficient over time and mileage (which is why the PCM does the lean/rich switching - to test them) ..... so if you want to spend the money, a new set of sensors can't hurt (well, other than your wallet).
Now, the fact your sensors have 72,000 miles on them MAY be contributing to your problem. They get less efficient over time and mileage (which is why the PCM does the lean/rich switching - to test them) ..... so if you want to spend the money, a new set of sensors can't hurt (well, other than your wallet).
I really don't like spending extra cash, but at the same time. I want the problem gone and my tuner is 150 miles away, so I would rather have fresh sensors when he turns some codes to "not report"
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From: San Rafael CA
If ..... say .... 20+ HP is more important than being "legal" ... then screw the codes .... go for all the mods you want ..... but understand that has a "cost" when the car has to be tested.
If not having to worry about passing the test is more important .... then look into a less aggressive set of mods .....
It's your car .... make it what is "right" for you.
Just remember ... no matter what you do .... you're driving a Corvette ... and there are BILLIONS of people on this planet who will never have the privelage.
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The fronts are $64 from Autozone
It does show a different part number front to rear too. The fronts show to be a 4 wire heated and the rears are 2 wire non-heated. How do you get the fronts to heat up if you are using the rear O2's? You're missing 2 wires and I guess a heating element.
It does show a different part number front to rear too. The fronts show to be a 4 wire heated and the rears are 2 wire non-heated. How do you get the fronts to heat up if you are using the rear O2's? You're missing 2 wires and I guess a heating element.
Last edited by Millenium Z06; Jul 9, 2008 at 10:55 PM.
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From: Granby, MA
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hmmmm
The fronts are $64 from Autozone
It does show a different part number front to rear too. The fronts show to be a 4 wire heated and the rears are 2 wire non-heated. How do you get the fronts to heat up if you are using the rear O2's? You're missing 2 wires and I guess a heating element.
It does show a different part number front to rear too. The fronts show to be a 4 wire heated and the rears are 2 wire non-heated. How do you get the fronts to heat up if you are using the rear O2's? You're missing 2 wires and I guess a heating element.
Here is what i got:
Bosch / Oxygen Sensor
Warranty - 1 YR
13111
$69.99
Application:
Sensor located after catalytic converter
Note:
O.E. type
Exact fit; two required, one per exhaust pipe/manifold; Length (sealing surface to end of connector): 50.5"
Bosch / Oxygen Sensor
Warranty - 1 YR
15703
$52.99
Application:
Sensor located before catalytic converter
Note:
O.E. type
4 wire; heated; 2 required.
I double checked as autozone did not list if the rear was 2 or 4 wire heated. Advance auto has the same sensor....its a heated 4 wire.
So now I will just have to see what is on my car before I purchase new.
Last edited by XtremeVette; Jul 9, 2008 at 11:09 PM.
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well just checked autozone....not sure where your info came from?
Here is what i got:
Bosch / Oxygen Sensor
Warranty - 1 YR
13111
$69.99
Application:
Sensor located after catalytic converter
Note:
O.E. type
Exact fit; two required, one per exhaust pipe/manifold; Length (sealing surface to end of connector): 50.5"
Bosch / Oxygen Sensor
Warranty - 1 YR
15703
$52.99
Application:
Sensor located before catalytic converter
Note:
O.E. type
4 wire; heated; 2 required.
I double checked as autozone did not list if the rear was 2 or 4 wire heated. Advance auto has the same sensor....its a heated 4 wire.
So now I will just have to see what is on my car before I purchase new.
Here is what i got:
Bosch / Oxygen Sensor
Warranty - 1 YR
13111
$69.99
Application:
Sensor located after catalytic converter
Note:
O.E. type
Exact fit; two required, one per exhaust pipe/manifold; Length (sealing surface to end of connector): 50.5"
Bosch / Oxygen Sensor
Warranty - 1 YR
15703
$52.99
Application:
Sensor located before catalytic converter
Note:
O.E. type
4 wire; heated; 2 required.
I double checked as autozone did not list if the rear was 2 or 4 wire heated. Advance auto has the same sensor....its a heated 4 wire.
So now I will just have to see what is on my car before I purchase new.
Prices are different too. Bosch site has them and the pic shows 4 wires, wonder why AZ calls them 2 wire, hmmm.
Connector is different though, I have a spare set and the fronts are flat, the rears are square.
For a $100 I'd go ahead and change yours, at least you can eliminate them as a possible problem.
Last edited by Millenium Z06; Jul 10, 2008 at 01:14 AM.
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They also have a 13450 rear O2 that shows 67" end to end if the 13111 is too short.
About this product:
Part Number: 13450
Weight: 0.45 lbs.
Warranty: 1 YR
Application: Sensor located after catalytic converter
Note: O.E. type
Alternate fit (Customer choice); two required one per exhaust pipe/manifold; Length (sealing surface to end of connector): 67.25"
About this product:
Part Number: 13450
Weight: 0.45 lbs.
Warranty: 1 YR
Application: Sensor located after catalytic converter
Note: O.E. type
Alternate fit (Customer choice); two required one per exhaust pipe/manifold; Length (sealing surface to end of connector): 67.25"
Last edited by Millenium Z06; Jul 10, 2008 at 01:20 AM.
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