installed LG streets headers, O2 sensor question
Thread Starter
Racer
Joined: Sep 2007
Posts: 377
Likes: 0
From: Yigo Guam
St. Jude Donor '09
installed LG streets headers, O2 sensor question
just installed LG streets headers, and loving it. i used the rear sensors and moved them to headers and connect them to the front sensor connection as instructed. now my "check engine light is on". if i buy new sensors for the rears and connect them to the rear connection, would this stop my "check engine light to go on? are there any other options? thanks for any help.
Instructor
Joined: Sep 2006
Posts: 124
Likes: 0
From: Chesapeake VA
I installed LG streets on my 2000. I tried running all 4 O2 sensors with moving two rears to the fronts and new rears installed in back. It worked fine, but I would occassionally get a code (insufficient switching). When I had the car tuned, I had the tuner delete the rear O2s. Their only purpose is to monitor cat perofrmance. If you hook up all 4, make sure you get the rears connected to the correct terminals. They cross over (driver's side pipe to passenger connector). Best option is to get rear O2s tuned out, to avoid codes.
Burning Brakes
Joined: Sep 2007
Posts: 1,048
Likes: 300
From: FL
I installed LG streets on my 2000. I tried running all 4 O2 sensors with moving two rears to the fronts and new rears installed in back. It worked fine, but I would occassionally get a code (insufficient switching). When I had the car tuned, I had the tuner delete the rear O2s. Their only purpose is to monitor cat perofrmance. If you hook up all 4, make sure you get the rears connected to the correct terminals. They cross over (driver's side pipe to passenger connector). Best option is to get rear O2s tuned out, to avoid codes.
Thread Starter
Racer
Joined: Sep 2007
Posts: 377
Likes: 0
From: Yigo Guam
St. Jude Donor '09
what will be the best handheld tuner to delete the rear 02 sensors? i dont know any tuner shops in hawaii. im going to run 02 sims and see how it works out. thanks to everybodys help
Le Mans Master
Joined: May 2005
Posts: 6,366
Likes: 249
From: Fort Lauderdale, Florida
As you've read by now, you don't need the rear O2's for inspections. Even when hooked up like stock with all four, you can still get codes because the header system moves the sensors further away from the engine and they are reading a reduced temp. If you don't have any tuners in your area, some of the hand-helds can tune out the rears. I'm pretty sure the Diablo can, plus there are some others. If you go on line to the magazine GM High Tech Performance, several months ago they had an article comparing all available hand held tuners presently on the market and it mentioned which ones could tune out the rear O2's. As far as the simulators are concerned, they sometimes show up on online auctioning. However, since the fed gov't. declared them illegal they have kind of disappeared.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Le Mans Master
Joined: May 2005
Posts: 6,366
Likes: 249
From: Fort Lauderdale, Florida
The best idea is to get your tuned to get rid of the rear sensors because at the same time the tuner will also be adjusting your engine to take full advantage of the headers, which will boost your hp even more and probably increase your gas mileage, too.
Burning Brakes
Joined: Apr 2005
Posts: 949
Likes: 1
From: Oakdale CT
Don't know much about them, but they are a recommended installer by APS for their twin turbo kits so they probably aren't totally incompetent. I maybe having a clutch installed when I get back to the island this summer. You might want to stop by and check them out.
