p1153 p1133

[redbird555]

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.

[Cutlass]

I have those codes tuned out on my car and there aren't any ill effects.