P0153 and P1133 codes after LT Header Install
Thread Starter
Instructor
Joined: Jul 2005
Posts: 122
Likes: 0
From: Raleigh NC
P0153 and P1133 codes after LT Header Install
P0153 Heated Oxygen Sensor (HO2S) Slow Response Bank 2 Sensor 1
P1133 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1
These are the two codes Im throwing. I looked up under it and it looks like the wire jacket was melting somewhat, so I relocated it. I've heard it does usually have problems with the Heated O2 sensor, since its farther back and doesn't have cats anymore. Any thoughts?
ED
P1133 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1
These are the two codes Im throwing. I looked up under it and it looks like the wire jacket was melting somewhat, so I relocated it. I've heard it does usually have problems with the Heated O2 sensor, since its farther back and doesn't have cats anymore. Any thoughts?
ED
Thread Starter
Instructor
Joined: Jul 2005
Posts: 122
Likes: 0
From: Raleigh NC
messed with routing wires.
I just got through looking over the wires, they look fine, but melted the jackets a little. But im taking it to my tuner wednesday to see if a scan will indicate whats going on. I had a hard time routing the wires from the front o2's back to the connectors. The way the o2s are setup they have to be crossed back over the collectors then back to the connection paks. Im hoping its a simple fix.
Ed
Ed
Drifting
Joined: Oct 2004
Posts: 1,384
Likes: 8
From: Southwest Virginia
Are you running factory front sensors in the headers? Or did you move the factory rear sensors up into the headers? A lot of times the factory front sensors don't have enough wattage heaters to keep them hot which will cause those types of codes, so the solution is to move the rear sensors up to the front location and use 4 pin flat plug to 4 pin square plug adapters.
Sounds like you got this part correct, but remember left front sensor goes to left harness, right front sensor to right harness.
Sounds like you got this part correct, but remember left front sensor goes to left harness, right front sensor to right harness.
Thread Starter
Instructor
Joined: Jul 2005
Posts: 122
Likes: 0
From: Raleigh NC
Im Running the Factory Front Sensors
The rear would be too long and the connections wouldn't be the same. I removed the fronts from the manifold and put them on the merge collectors and got extensions. The prob was that the wires point the opposite direction and you have to cross back over the headers in order to run back up to the front connection paks.
Originally Posted by SpeedyZ
Are you running factory front sensors in the headers? Or did you move the factory rear sensors up into the headers? A lot of times the factory front sensors don't have enough wattage heaters to keep them hot which will cause those types of codes, so the solution is to move the rear sensors up to the front location and use 4 pin flat plug to 4 pin square plug adapters.
Sounds like you got this part correct, but remember left front sensor goes to left harness, right front sensor to right harness.
Sounds like you got this part correct, but remember left front sensor goes to left harness, right front sensor to right harness.
Pro
Joined: Nov 2003
Posts: 503
Likes: 1
From: Greensboro NC
Originally Posted by SpeedyZ
Are you running factory front sensors in the headers? Or did you move the factory rear sensors up into the headers? A lot of times the factory front sensors don't have enough wattage heaters to keep them hot which will cause those types of codes, so the solution is to move the rear sensors up to the front location and use 4 pin flat plug to 4 pin square plug adapters.
Sounds like you got this part correct, but remember left front sensor goes to left harness, right front sensor to right harness.
Sounds like you got this part correct, but remember left front sensor goes to left harness, right front sensor to right harness.
Drifting
Joined: Oct 2004
Posts: 1,384
Likes: 8
From: Southwest Virginia
Originally Posted by 82shark
The rear would be too long and the connections wouldn't be the same. I removed the fronts from the manifold and put them on the merge collectors and got extensions. The prob was that the wires point the opposite direction and you have to cross back over the headers in order to run back up to the front connection paks.
I'm running 4 factory rear sensors on my car with no problems. Those factory front sensors have low wattage heaters and don't stay hot enough when they are moved that far down stream from the engine. They work fine when they are up there close to the engine.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
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
Instructor
Joined: Aug 2003
Posts: 199
Likes: 5
From: Kingsland, GA
Cruise-In VI Veteran
Cruise-In VII Veteran
Make sure you air tubes are not leaking!
I chased this problem for almost a year. Pass side air tube was leaking.
$2.00 for new air tube gaskets and problem was gone. I swaped O2s, installed new O2s and it came down to being the chepest thing.
I chased this problem for almost a year. Pass side air tube was leaking.
$2.00 for new air tube gaskets and problem was gone. I swaped O2s, installed new O2s and it came down to being the chepest thing.
Thread Starter
Instructor
Joined: Jul 2005
Posts: 122
Likes: 0
From: Raleigh NC
Texas Speed LTs
Originally Posted by SpeedyZ
What brand header are you using? Are you still running the factory rear sensors? Are you running cats on the car? My LG pro headers shipped with the little 4 pin flat plug to 4 pin square plug adapters which allows you to hook the factory rear sensor to the factory front harness. You will end up with extra cable you need to wind up and tie off somewhere. You should be able to buy the adapters from LG, if you bought LG headers they will probably give you a set no charge. Running the rear sensors in the front will most likely solve your code problem. I'm running 4 factory rear sensors on my car with no problems. Those factory front sensors have low wattage heaters and don't stay hot enough when they are moved that far down stream from the engine. They work fine when they are up there close to the engine.
I'm running 4 factory rear sensors on my car with no problems. Those factory front sensors have low wattage heaters and don't stay hot enough when they are moved that far down stream from the engine. They work fine when they are up there close to the engine.Keep your fingers crossed
Ed
Thread Starter
Instructor
Joined: Jul 2005
Posts: 122
Likes: 0
From: Raleigh NC
Tuner Scanned the O2's
Everything appeared fine to him. He scanned it while running at idle. The o2's are both sending signals to the pcm. He deleted the codes so they won't throw any codes anymore. He said to keep an eye on it, but it didn't give me any problems on the 20 mile drive home from work today.
Ed
Ed
