redbird555

iTrader: (14)

Hi guys I know this has been covered before but I cat seem to find the definitive answer I'm looking for. Ive been getting the above codes after I installed my headers and I have even replaced the extensions and old sensors with new corvette densos. Ive come to the conclusion that i just need to have them tuned out however Ive been told that that the code is causing the car to run in open loop and hinder performance. Any truth to this or is there no performance difference.

ws6fitz

Im pretty sure that when your car is at full throttle its not even looking at the
o2 readings. But im really not sure........

redbird555

iTrader: (14)

thanks I thought that might be the case but I wasnt sure. anyone that can confirm this?

redbird555

iTrader: (14)

This might be better suited too the pcm section if a mod would move it would be much appreciated.

Michael02hawk

iTrader: (26)

Years ago my tuner simply turned these 2 codes off. All worked well, but last week I decided I wanted the codes on.

To make it work properly, you'll need to de-sensitise the some o2 tables.
I've just updated mine today! I'll run it for a day or 2 to be sure the SES isnt triggered, and will post the info then.

jason2687

iTrader: (2)

^^^I'm having the same exact issue. What exactly do you mean by desensitize the O2's????

Michael02hawk

iTrader: (26)

Okay, the car threw the same 2 codes again. So I dont know what I'm doing in trying to de-sensitize them.

I'm just shutting those 2 codes off.

jason2687

iTrader: (2)

I have these same two codes. Should I even bother changing the O2's or should I just get these codes turned off????

The car seems to run fine when the SES light is off after clearing the codes with a predator tuner. After a couple days of clearing them, they will pop up out of no where and I'll get really shitty gas milage.

jason2687

iTrader: (2)

^^^^ Bump, for replacement or just tune out the codes if it seems to be running alright??

redbird555

iTrader: (14)

just turn them off lol its the easiest way

OUTLAWZ RACING

iTrader: (9)

one way to fix it just put the o2 bunges closer to the collector. the o2 dont maintain the heat like the should. I know some people dont like to cut new headers but for the life of me i cant understand why the builders of headers havent put them closer. This codes is 8 years old lol.