O2 sims. Do i need them?
Thread Starter
Teching In
Joined: May 2004
Posts: 30
Likes: 0
From: Jackson, TN
O2 sims. Do i need them? i am fixing to install Hooker LT headers and Y pipe. Do i need to get O2 sims for my car to run right? What effects will it have on my car if i dont get them. Not gonna to run any cats. Any advice would be much appreciated.
11 Second Club
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
If you are not running cats you need to either plug O2 sims in or have the rera O2 codes deleted with LS1edit. FYI I bought O2 sims when I did headers last year and will be selling them on this board when I get a basic tune in less tha two weeks. If you don't use them or the edit you will have an SES light, it will not affect performance but you will have to stare at SES light all the time. Also it will not pas OBDII plug in diagnostic emissions test.
The o2 sensor code DOES AFFECT PERFORMANCE. The code retards the timing to put the car in safe mode. You need to use the front o2's. The back can either be deleted by LS1 Edit or you can use o2 sims.
the front o2 sensor code does affect performance but the rears is just for emissions and its not a big deal....... from what i understand. my friends o2 sims were bad and he was riding around like that for a while no problems. if u could get a tune that deletes the codes, like i did, you save about 90 bucks
