Installed Headers...now Check Engine light keeps coming on!!!!!!!
Thread Starter
Instructor
Joined: Nov 2009
Posts: 247
Likes: 6
From: St. Charles IL
Installed Headers...now Check Engine light keeps coming on!!!!!!!
A few months ago I had some LG Pro Headers installed and now my Check Engine light keeps coming on. The diagnostic reading says that it's a slow response on Bank 2 Sensor 1 (O2 Sensor?). I've replaced the sensor 4 times already and still keep getting the light. Sometimes I can go a month or two with no light and sometimes it comes on right away.
Any advice on why this might be happening would be greatly appreciated. Thank you in advance.
Any advice on why this might be happening would be greatly appreciated. Thank you in advance.
Last edited by Extreme C5; Apr 13, 2010 at 06:53 AM.
Tech Contributor
Joined: Jan 2007
Posts: 19,450
Likes: 1,155
From: Dyer, IN
Tech Contributor
Joined: Jan 2007
Posts: 19,450
Likes: 1,155
From: Dyer, IN
A few months ago I had some LG Pro Headers installed and now my Check Engine light keeps coming on. The diagnostic reading says that it's a slow response on Bank 2 Sensor 1 (O2 Sensor?). I've replaced the sensor 4 times already and still keep getting the light. Sometimes I can go a month or two with no light and sometimes it comes on right away.
Any advice on why this might be happening would be greatly appreciated. Thank you in advance.
Any advice on why this might be happening would be greatly appreciated. Thank you in advance.
Melting Slicks
Joined: Feb 2007
Posts: 3,266
Likes: 8
From: Indian Rocks Beach FL
St. Jude Donor '08-'09-'10
I couldn't find a decent diagram in the manual but if you go to the section for replacing the sensors you can clearly see which is which.
Melting Slicks
Joined: Feb 2007
Posts: 3,266
Likes: 8
From: Indian Rocks Beach FL
St. Jude Donor '08-'09-'10
Drifting
Joined: Oct 2004
Posts: 1,281
Likes: 21
From: Orlando Florida
Yes, they even give you adapters with the headers for that purpose.
This might seem very stupid but I did it and from talking to a few people, it's a common mistake: make sure that the O2 sensors are plugged in the correct sides. I know that they are faced in a way that would make you think you plug them in crossed but you do not. Plug the O2 sensor in onto the same side.
This might seem very stupid but I did it and from talking to a few people, it's a common mistake: make sure that the O2 sensors are plugged in the correct sides. I know that they are faced in a way that would make you think you plug them in crossed but you do not. Plug the O2 sensor in onto the same side.
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Drifting
Joined: Nov 2006
Posts: 1,682
Likes: 2
From: Plano Texas
St. Jude Donor '08
No, drivers side is bank 1 with front sensor being sensor 1 and rear sensor sensor 2. Passenger side is bank 2 with front sensor being sensor 1 and rear sensor being sensor 2.
I couldn't find a decent diagram in the manual but if you go to the section for replacing the sensors you can clearly see which is which.
I couldn't find a decent diagram in the manual but if you go to the section for replacing the sensors you can clearly see which is which.
Heel & Toe
Joined: Jan 2010
Posts: 16
Likes: 0
I had the exact same problem. Talk about frustrating...
The problem, as I was explained from a very competent Corvette-only specialist (who fixed my problem) is that the code (PO0153, I think it was...also, PO0133 for the other side) is a slow heat response time from the O2 sensor. This happens because the O2 sensor is now located further away from the engine. Stock exhaust has the O2 very close to the head/exhaust port. With headers, especially long-tube headers, the O2 sensor is relocated to downstream of the collector. Apparently, this means it doesn't get as hot as it does next to the engine.
IF you can find someone to rework the program to ignore those two codes, it goes away. The other option is to have a tap welded on to your header tube next to the exhaust port, but then if you have a problem in one of the other cylinders, you won't know it.
...or, you could just use the other type of O2 sensor and an adapter. (Probably cheaper too.)
The problem, as I was explained from a very competent Corvette-only specialist (who fixed my problem) is that the code (PO0153, I think it was...also, PO0133 for the other side) is a slow heat response time from the O2 sensor. This happens because the O2 sensor is now located further away from the engine. Stock exhaust has the O2 very close to the head/exhaust port. With headers, especially long-tube headers, the O2 sensor is relocated to downstream of the collector. Apparently, this means it doesn't get as hot as it does next to the engine.
IF you can find someone to rework the program to ignore those two codes, it goes away. The other option is to have a tap welded on to your header tube next to the exhaust port, but then if you have a problem in one of the other cylinders, you won't know it.
...or, you could just use the other type of O2 sensor and an adapter. (Probably cheaper too.)
Instructor
Joined: Sep 2009
Posts: 177
Likes: 0
From: New Orleans Louisiana
I had the exact same problem. Talk about frustrating...
The problem, as I was explained from a very competent Corvette-only specialist (who fixed my problem) is that the code (PO0153, I think it was...also, PO0133 for the other side) is a slow heat response time from the O2 sensor. This happens because the O2 sensor is now located further away from the engine. Stock exhaust has the O2 very close to the head/exhaust port. With headers, especially long-tube headers, the O2 sensor is relocated to downstream of the collector. Apparently, this means it doesn't get as hot as it does next to the engine.
IF you can find someone to rework the program to ignore those two codes, it goes away. The other option is to have a tap welded on to your header tube next to the exhaust port, but then if you have a problem in one of the other cylinders, you won't know it.
...or, you could just use the other type of O2 sensor and an adapter. (Probably cheaper too.)
The problem, as I was explained from a very competent Corvette-only specialist (who fixed my problem) is that the code (PO0153, I think it was...also, PO0133 for the other side) is a slow heat response time from the O2 sensor. This happens because the O2 sensor is now located further away from the engine. Stock exhaust has the O2 very close to the head/exhaust port. With headers, especially long-tube headers, the O2 sensor is relocated to downstream of the collector. Apparently, this means it doesn't get as hot as it does next to the engine.
IF you can find someone to rework the program to ignore those two codes, it goes away. The other option is to have a tap welded on to your header tube next to the exhaust port, but then if you have a problem in one of the other cylinders, you won't know it.
...or, you could just use the other type of O2 sensor and an adapter. (Probably cheaper too.)
Tech Contributor
Joined: Jan 2007
Posts: 19,450
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From: Dyer, IN
IMO, you certainly want the front O2's reporting codes.
Heel & Toe
Joined: Jan 2010
Posts: 16
Likes: 0
Agreed, you definitely want the O2 sensors reporting codes...BUT, by telling the computer to ignore ONLY trouble codes PO0133 and PO0153, the sensors still function perfectly fine, but the computer just ignores the "slow heat response" code. It does not affect the performance of the sensor at all.
Tech Contributor
Joined: Jan 2007
Posts: 19,450
Likes: 1,155
From: Dyer, IN
Agreed, you definitely want the O2 sensors reporting codes...BUT, by telling the computer to ignore ONLY trouble codes PO0133 and PO0153, the sensors still function perfectly fine, but the computer just ignores the "slow heat response" code. It does not affect the performance of the sensor at all.
Team Owner
Joined: Mar 1999
Posts: 22,025
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From: At the beach in little Rhody
Getting ready to install these as well, did the OP ever confirm the rears are moved to the front or did he install the fronts back in their original position (although I don't think they will reach)?
Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
Nope. LG recommends moving the rears to the front(using adapters), and tuning out the codes for the rears.
Team Owner
Joined: Dec 1999
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From: Here
Pilot of Beer Force 1
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I believe in the Beer Fairy
^^^ and you still may get the occasional code especially when the weather changes in the spring and fall...
Thread Starter
Instructor
Joined: Nov 2009
Posts: 247
Likes: 6
From: St. Charles IL
I had the exact same problem. Talk about frustrating...
The problem, as I was explained from a very competent Corvette-only specialist (who fixed my problem) is that the code (PO0153, I think it was...also, PO0133 for the other side) is a slow heat response time from the O2 sensor. This happens because the O2 sensor is now located further away from the engine. Stock exhaust has the O2 very close to the head/exhaust port. With headers, especially long-tube headers, the O2 sensor is relocated to downstream of the collector. Apparently, this means it doesn't get as hot as it does next to the engine.
IF you can find someone to rework the program to ignore those two codes, it goes away. The other option is to have a tap welded on to your header tube next to the exhaust port, but then if you have a problem in one of the other cylinders, you won't know it.
...or, you could just use the other type of O2 sensor and an adapter. (Probably cheaper too.)
The problem, as I was explained from a very competent Corvette-only specialist (who fixed my problem) is that the code (PO0153, I think it was...also, PO0133 for the other side) is a slow heat response time from the O2 sensor. This happens because the O2 sensor is now located further away from the engine. Stock exhaust has the O2 very close to the head/exhaust port. With headers, especially long-tube headers, the O2 sensor is relocated to downstream of the collector. Apparently, this means it doesn't get as hot as it does next to the engine.
IF you can find someone to rework the program to ignore those two codes, it goes away. The other option is to have a tap welded on to your header tube next to the exhaust port, but then if you have a problem in one of the other cylinders, you won't know it.
...or, you could just use the other type of O2 sensor and an adapter. (Probably cheaper too.)
Melting Slicks
Joined: Oct 2007
Posts: 2,798
Likes: 8
From: It's true money can't buy happiness, but it is more comfortable crying in a Corvette than on a bicyc
St. Jude Donor '13
I suffer the same problem with Dynatechs. I moved the rears to the front with LG adapters supposedly because they heat up faster. Or get hotter. Anyways when it does happen I just reset the codes from the DIC. I've gotten so good at it I do it flying down the hiway. I used to pull over and shut off the car to reset the codes but that grew old fast.