hey guys its been a few weeks since i got my new lt pacesetters installed n now i see the SES light turns on. i have the o2 sims n extentions installed too so wat do u think the cause can be? also it smells kinda bad under the hood i mean it suppose to smell bad when u first get it installed n start it up but it has been like that for 2 weeks. also there is some kinda noise coming under the car which i think is the y-pipe. when ever i step on the gas i hear a weird noise. does anyone know what this could be?

 

From what I heard the 02 sims sometimes don't always kill the SES, an LS1 edit is what you should have done. Thats why I waited until I got my car tuned to worry about the headers causing the SES. The smell is very normal, its only the top coating on the headers getting burnt. And I also had a noticeable rumble noise on start up and WOT right under the driver seat right after the install, it went away after a few weeks, really not sure what was causing it initially, but it went away fairly soon.

 

Did you take off the EGR or AIR system as well? If so, that could be throwing a code.

 

ok guys i found the code it is p0135 refers to heat curcuit malfuntion bank 1 sensor 1. what does that mean? how do i fix this problem?

 

Thats a code for your o2 sensor heater. I would swap your pre cat o2 sensors and see if the code changes to a bank 2 sensor 1. If the code changes replace the o2 sensor.

 

make sure the wires are zip-tied out of the way so that you don't (or havn't) burned one of the sensor wires.

could explain the delayed SES