Tech Help - Code P1133 - O2 Sensor Questions
Thread Starter
Drifting
Joined: Oct 1999
Posts: 1,669
Likes: 98
From: Jacksonville FL
Tech Help - Code P1133 - O2 Sensor Questions
Hey Guys-
I just had a complete new clutch and flywheel installed by a reputable Corvette specialist. We went with the LS6 and LS7 combo purchased through Fred Beans. Since the install, the check engine light has been recurrently coming on. Manual check of the DIC keeps showing Code P1133, despite resetting a number of times. The installer had to drop the exhaust and TTS headers out of the way to do the clutch. Has anyone else had this problem after such an install? Do you think that the sensor is faulty, or possibly damaged from the header and exhaust removal? Thanks.
I just had a complete new clutch and flywheel installed by a reputable Corvette specialist. We went with the LS6 and LS7 combo purchased through Fred Beans. Since the install, the check engine light has been recurrently coming on. Manual check of the DIC keeps showing Code P1133, despite resetting a number of times. The installer had to drop the exhaust and TTS headers out of the way to do the clutch. Has anyone else had this problem after such an install? Do you think that the sensor is faulty, or possibly damaged from the header and exhaust removal? Thanks.
Former Vendor
Joined: Mar 2006
Posts: 153
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O2 sensors are fairly sensitive, and they are dependent upon a fresh supply of oxygen. If the wires were twisted during removal/re-install, they could have damaged the pathway for the fresh oxygen. This error essentially means the O2 is not switching from rich to lean (vice versa) over a period of time. If you have a scan tool, you should confirm whether the voltage is remaining too high/low. An exhaust leak can also cause this code to trip. Here are some detailed diagnostic steps.
Thread Starter
Drifting
Joined: Oct 1999
Posts: 1,669
Likes: 98
From: Jacksonville FL
Originally Posted by John@SDPC
O2 sensors are fairly sensitive, and they are dependent upon a fresh supply of oxygen. If the wires were twisted during removal/re-install, they could have damaged the pathway for the fresh oxygen. This error essentially means the O2 is not switching from rich to lean (vice versa) over a period of time. If you have a scan tool, you should confirm whether the voltage is remaining too high/low. An exhaust leak can also cause this code to trip. Here are some detailed diagnostic steps.
Thanks, John.
Since, I don't have a scan tool or way to check for an exhaust leak, so I guess I'll have to make the drive back up to the installer.
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Mike
Safety Car
Joined: Aug 2000
Posts: 4,154
Likes: 1
From: Murphy TX
Cruise-In II Veteran
If you're interested in getting a good scan tool at a bargain, EFILive has reduced the price on their scanner product. They're getting ready to release new v2 scanning and tuning hardware and are clearing out the v1 hardware.
Safety Car
Joined: May 2004
Posts: 4,811
Likes: 2
From: Simpsonville SC
Ive been having the same problems with that same code. It keeps coming back. Getting tired of crawling underneath and changing O2 sensors at $80 each, gets old after a while. If yall find out how to fix this problem let me know. 99hrdtp hello fellow South Carolinian!
Thread Starter
Drifting
Joined: Oct 1999
Posts: 1,669
Likes: 98
From: Jacksonville FL
Originally Posted by ToplessTexan
If you're interested in getting a good scan tool at a bargain, EFILive has reduced the price on their scanner product. They're getting ready to release new v2 scanning and tuning hardware and are clearing out the v1 hardware.
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Mike
Thread Starter
Drifting
Joined: Oct 1999
Posts: 1,669
Likes: 98
From: Jacksonville FL
Originally Posted by happa
Ive been having the same problems with that same code. It keeps coming back. Getting tired of crawling underneath and changing O2 sensors at $80 each, gets old after a while. If yall find out how to fix this problem let me know. 99hrdtp hello fellow South Carolinian!
Where did you order your O2 sensors from, anyway?----
Mike
Instructor
Joined: Aug 2003
Posts: 199
Likes: 5
From: Kingsland, GA
Cruise-In VI Veteran
Cruise-In VII Veteran
I had the same problem but on the other side.
Check and make sure your air tubes are not leaking. I put a second gasket on the air tube and stoped getting the code.
Hope this helps.
Check and make sure your air tubes are not leaking. I put a second gasket on the air tube and stoped getting the code.
Hope this helps.
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Safety Car
Joined: May 2004
Posts: 4,811
Likes: 2
From: Simpsonville SC
I bought mine from the local dealership. Im considering buying some Bosch from one of the forum vendors. Just to see if there is any differance. I changed both of my air tube gaskets and still getting it. I posted something similiar to this post and someone told me that it is the race fuel Ive been using. Which it did go out everytime I use it (it seems that way) but I only used that for the races in the Corvette Challenge. Well if anyone finds out the answer to all this please let us all know. Good luck everyone!!!!!!
Safety Car
Joined: Aug 2000
Posts: 4,154
Likes: 1
From: Murphy TX
Cruise-In II Veteran
Things like octane boosters and race gas not good for your O2 sensors.99HRDTP, along that line of thought, what kind of collector gaskets did you use? Sometimes silicone stuff can foul them up too. I like the nice copper gaskets. The top collector bolts can be a bit of a pain, maybe you could have a bit of a leak there? One thing you could do would be to swap the sensors and see if the problem follows it.
Thread Starter
Drifting
Joined: Oct 1999
Posts: 1,669
Likes: 98
From: Jacksonville FL
Originally Posted by ToplessTexan
Things like octane boosters and race gas not good for your O2 sensors.99HRDTP, along that line of thought, what kind of collector gaskets did you use? Sometimes silicone stuff can foul them up too. I like the nice copper gaskets. The top collector bolts can be a bit of a pain, maybe you could have a bit of a leak there? One thing you could do would be to swap the sensors and see if the problem follows it.
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Mike
