I just installed a set of LG Street Long Tubes on my 2003 along with metal matrix CATs. I have the O2 sensors at the end of the collectors and none after the CATS. I had the car tuned by the guys at ECS mail order tune and the car runs great but (theres always a but I keep getting P1153 codes that refers to the Bank2 sensor 1 or the sensor on the passenger side. I installed brand new Bosch 13111 O2 sensors and used the harness converts supplied by LG. Is this a common problem with the headers or do I have a bad/slow O2 sensor?

 

I know there are LG header experts out there?

 

Not an LG expert but I throw codes. Slow response bank one, sensor one, and bank two, sensor one. Common problem. You learn to clear the code really fast and easy with the dic. Somewhere around here I read advice to turn on your ignition switch for a bit before starting the car. I've tried it and it seems to work. It usually pops a code right after I hit I-95 and blast up to speed then back off a bit. Simple reset and it hasn't happened again in the same trip.

 

I have exactly the same problem and the other day I called a corvette shop where I normaly take my vette for any work. The owner told me it is nothing to worry about, because there are some temp. changes due to LTs you will alays have 1153. I cleared it using DIC and the CEL never came back. I was a little concerned too but after talking to a specialist I do not worry about it. If the car runs great you shouldn't worry either.

 

Did you use the rear O2's or the front? I never had a problem when I used the rears in the front location (LG Pro's).

 

Yes..I put new rears in the front. Its interesting because I have never got a failure on the drivers side, just the passenger side. I wonder if one of my new sensors is really bad?

 

[QUOTE=ignatkor;1574333810]The owner told me it is nothing to worry about, because there are some temp. changes due to LTs you will alays have 1153. /QUOTE]

I have never thrown a code since installing LT's, even before I had the rear O2's tuned out. I'd find a new shop.

 

LOL...unfortunatley the "shop" is my garage. I did the install.

 

Seems to be a common issue with headers....you'll find more posts if you search. Call LG.....see what they have to say.

 

Sorry for the miscommunication. I was referring to the shop whose owner made the statement "it is nothing to worry about, because there are some temp. changes due to LTs you will alays have 1153."

 

Just to make sure, you didn't cross the O2s, did you ? They should not be crossed.

 

I dont think so...I read that issue before so I was vey careful routing the wires

 

You stated the car was running great, which would not be the case if the O2's were crossed......

 

Is it possible that one of the new O2 sensors is just bad or is that not likely?

 

Like I said, it's a common issue.....which you'll find if you search...


http://forums.corvetteforum.com/c5-t...-code-fix.html

http://forums.corvetteforum.com/c5-t...r-headers.html

http://forums.corvetteforum.com/c5-t...ease-help.html

http://forums.corvetteforum.com/c5-t...ed-it-off.html

http://forums.corvetteforum.com/c5-t...-problems.html

http://forums.corvetteforum.com/c5-t...-of-these.html

http://forums.corvetteforum.com/c5-t...ong-tubes.html

http://forums.corvetteforum.com/c5-t...lems-help.html

http://forums.corvetteforum.com/c5-t...ode-p1153.html

http://forums.corvetteforum.com/c5-t...lems-help.html

http://forums.corvetteforum.com/c5-t...1153-code.html

http://forums.corvetteforum.com/c5-t...1153-code.html

 

I installed the LG Super Pro's about two months ago. After installing the headers decided to call it quits for the night before installing the rest of the LG exhaust (HF cats, xpipe). Woke up the next morning and decided to take the passenger side header back off and install a bung for wide ban. I had previously installed the 02's (moved back to front) and when I went to remove (before taking the header out) the 02 noticed it had not seated all the way down on the bung (plus it was hard as hell to get back out). After removing the header I noticed the bung was full of slag from where it was welded into the header. It also had buggered up the threads on the 02. While installing the bug for wide band I re-taped the 02 bung and used a small file to see if I could salvage the 02 sensor. All seemed well as the sensor seated down and was able to tighten against the bung. To make a long story short when I cranked the car the first time it immediately through the 1153 code and I figured the 02 was shot. A couple of things the manual say's if you installed the 02 with anti-seize and got some on the sensor it will throw the code. Also, if you have an exhaust leak up-stream of the sensor (air port or header gasket) it will through the code. I had neither of these and wanted to get the car tuned right away. So I bought a Bosch sensor from AutoZone and haven't seen the code sense.

 

Interesting. When I installed mine there was a bit of anti-seize on the O2 so before installing the remainder of the system I used some long Q-tips and denatured alcohol to carefully clean the outside of the O2 sensor. I didn't get any codes.

 

Same here. I even put a/seize on the slip fit joints. Never any problems over the yrs, ( LG LT Pro's) of taking them on & off. I usually have the collectors hot, when removing the sensors, seems to screw out easier, ouch! I just burned my knuckles LOL.