O2 sensors
Thread Starter
Racer
Joined: Apr 2006
Posts: 300
Likes: 0
From: Largo FL
O2 sensors
I'm installing the LG LT Street header system. Which sensors do I install? Do I just install 2 of them? 
I have to two 24" extensions that came with the system.
There are also 2 fittings on the headers, and 2 on the tubes before the xpipe
I have an 04 C5.
Thanks in advance
I have to two 24" extensions that came with the system.
There are also 2 fittings on the headers, and 2 on the tubes before the xpipe
I have an 04 C5.
Thanks in advance
Race Director
Joined: Apr 2005
Posts: 10,179
Likes: 2,306
From: Wesley Chapel, FL Las Vegas, NV
The sensors are the same. When I did LG Streets on my kids FRC they cam with O2 sims from LG. Use the extensions to extent the harness from to old front sensor location the the new location on the Streets.
Last edited by Vega$Vette; Dec 29, 2007 at 12:18 PM.
Thread Starter
Racer
Joined: Apr 2006
Posts: 300
Likes: 0
From: Largo FL
Thanks for the replies...
Still confused though.
Possibly because a '04 is different?
I have 4 original sensors (2 front and 2 rear)
The headers have 2 fittings. Then there are 2 on the tubes before the headers.
I guess I will using the header fittings for the sensors and plug the 2 on the tubes in front of the x pipe and have the tuner take them off the computer
Now for the question..Which sensor do I use? The one that was from the manifold (the short wired ones with the LG wire extension), or the 2 longer ones which where the originally the rear sensors.
Thanks again!.
Still confused though.
Possibly because a '04 is different?
I have 4 original sensors (2 front and 2 rear)
The headers have 2 fittings. Then there are 2 on the tubes before the headers.
I guess I will using the header fittings for the sensors and plug the 2 on the tubes in front of the x pipe and have the tuner take them off the computer
Now for the question..Which sensor do I use? The one that was from the manifold (the short wired ones with the LG wire extension), or the 2 longer ones which where the originally the rear sensors.
Thanks again!.
Race Director
Joined: Apr 2005
Posts: 10,179
Likes: 2,306
From: Wesley Chapel, FL Las Vegas, NV
Move the rear ones to the front. Then use the extensions/adapters to plug them into where the front ones originally plugged into. Be sure not to cross them.That a common problem for guys when they install headers. You will still need O2 sims or will have to program out the rears or you will get CEL.
Race Director
Joined: Apr 2005
Posts: 10,179
Likes: 2,306
From: Wesley Chapel, FL Las Vegas, NV
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Le Mans Master
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Race Director
Joined: Apr 2005
Posts: 10,179
Likes: 2,306
From: Wesley Chapel, FL Las Vegas, NV
Race Director
Joined: Apr 2005
Posts: 10,179
Likes: 2,306
From: Wesley Chapel, FL Las Vegas, NV
Yes that's why LG ships you the Extension/Adapters.
Just cut the connectors off the bad sensors and connect it to the good sensors making sure the wires are connected to the same color wires.
ps. I do have 2 good front sensors i can send you for $75 shipped.Is this connector the same?
Just cut the connectors off the bad sensors and connect it to the good sensors making sure the wires are connected to the same color wires.
ps. I do have 2 good front sensors i can send you for $75 shipped.Is this connector the same?
Last edited by Vega$Vette; Dec 29, 2007 at 07:44 PM.
Melting Slicks
Joined: Aug 2006
Posts: 3,123
Likes: 116
From: North Dallas Forty Orange County, Ca.
St. Jude Donor '08-'09-'10-'11-'12-'13, '15,'21
I just installed my LG LT's today and since I purchased them used, from LG I orderd what I thought were extensions for the rear sensors to move them behind the cats. What I received were adapters to move the rear sensors to the front. According to the tech at LG, the front and rear are not the same, rear heat up faster so that's a good thing.
Le Mans Master
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Yes that's why LG ships you the Extension/Adapters.
Just cut the connectors off the bad sensors and connect it to the good sensors making sure the wires are connected to the same color wires.
ps. I do have 2 good front sensors i can send you for $75 shipped.Is this connector the same?
Just cut the connectors off the bad sensors and connect it to the good sensors making sure the wires are connected to the same color wires.
ps. I do have 2 good front sensors i can send you for $75 shipped.Is this connector the same?
Wont the connections from LG make it to where you have to do NO cutting? And yes those are the right connections
Melting Slicks
Joined: Aug 2006
Posts: 3,123
Likes: 116
From: North Dallas Forty Orange County, Ca.
St. Jude Donor '08-'09-'10-'11-'12-'13, '15,'21
If someone wants the adapter harnesses to switch the back to front I may have a set for sale. I think I am going to order the extensions that will allow the use of all 4 cats, but it may not be until the end of this week before I have them available.