o2 sensor codes
01-17-2010, 07:49 PM
#1
TECH Apprentice
Thread Starter
iTrader: (6)
Join Date: Dec 2009
Location: Georgetown, South Carolina
Posts: 301
Received 0 Likes
on
0 Posts
o2 sensor codes
installed my lt's and i keep getting codes for my o2 sensors. i know how to get rid of them. my question is how do i keep them from coming back? o2 sim? or what?
01-17-2010, 09:27 PM
#3
Did you get coated headers? The heater and switching codes will be the typical codes you get on a header swap. Hotter o2's sometimes works or just telling pcm to ignore codes is the usually the best route. The coated or wrapped headers help keep the heat in the pipes which is what the o2's are looking for and if they aren't hot enough they get a little lazy (hence the codes). The sims are only for the rear sensors, they are getting harder to find these days (the sims).
01-17-2010, 10:46 PM
#5
Did you get coated headers? The heater and switching codes will be the typical codes you get on a header swap. Hotter o2's sometimes works or just telling pcm to ignore codes is the usually the best route. The coated or wrapped headers help keep the heat in the pipes which is what the o2's are looking for and if they aren't hot enough they get a little lazy (hence the codes). The sims are only for the rear sensors, they are getting harder to find these days (the sims).
GreenTurtle, What codes are you getting? Sensors 1 or 2?
Sensors 2 just need shut off and Sensors 1 you would do as Dewey suggested and put hotter sensors in (usually off of a vette or F body).
01-30-2010, 08:27 AM
#6
If you already got it tuned and still getting codes for the front ones, it's because your front o2's are taking a longer time to heat up and start switching.. This happens pretty often when you install lt headers... Take it to your tuner and have him check to see if they are switching.. If this the case, just have him disable the SES light for those particular codes....
01-30-2010, 09:37 AM
#7
TECH Enthusiast
There is no such thing as a "Hotter" O2 sensor. Precat sensors determine the air fuel ratio of the engine. Post cat tells the computer if the catalytic converter is working properly. Each sensor has a heater circuit to get it to operating temperature quickly. When these sensors are moved downstream (farther from the motor) they may not get to the right temperature fast enough or at all. Another problem with long tube headers. There are several codes for O2 sensors. What do you have?
Trending Topics
01-31-2010, 07:31 AM
#8
Originally Posted by Mrgoodwrench3
There is no such thing as a "Hotter" O2 sensor.
01-31-2010, 07:57 AM
#9
Did you get coated headers? The heater and switching codes will be the typical codes you get on a header swap. Hotter o2's sometimes works or just telling pcm to ignore codes is the usually the best route. The coated or wrapped headers help keep the heat in the pipes which is what the o2's are looking for and if they aren't hot enough they get a little lazy (hence the codes). The sims are only for the rear sensors, they are getting harder to find these days (the sims).
What brand are we talkin?
Thread
Thread Starter
Forum
Replies
Last Post
Tydriver
GM Engine & Exhaust Performance
45
10-23-2015 09:19 PM
creekrat
Tuning, Diagnostics, Electronics, and Wiring
2
09-10-2015 12:59 AM
muncie21
Tuning, Diagnostics, Electronics, and Wiring
2
09-07-2015 09:55 PM
