Ok, after installing the headers I get a code, Bank 1 sensor 2 heater low. I order 02 simulator from o2simulator.com with dual out put. I installed it on one of the front bank 02 (second plug from passenger side). My question what 02 sensor does the second (the other white wire) out put go to? I know I have to leave the 02 sensor plug in but do I have to remove the both 02 sensor that were tap from the header or can it remain in the header?

Oh its a 03 SE

Thanks

 

You should have removed two o2 sensors when you put the headers on, these are the ones after the precats, the front two should be installed and working.

The 2 you removed are the ones you hook up to and you have to leave them electrically plugged in but not physically installed because you will get a sensor heater code if they are not connected.

Also to know which wires to hook up, connect in on ecu side of the plug so that you can identify the wires.

 

Ok now I confused…according to the shop that put in the headers they install both 02 sensor back in the same spot that was in the OEM pipes. So now I"m lost, but the front 2 that you can see from under the hood should be left alone? And the other 2 are the one that need to be tap? Is that correct? What colors are the two 02 sensor harness that need to be tap?

 

Thats fine, thats the front two as I mentioned earlier and they should be left alone. Its the rear 2 that you are concerned with. They probably removed them, do you have them? The colors of the connectors on mine are green and dark blue. The front ones are both light blue. However mine is a 2k2 so yours could be different.

 

Thanks, I'll have to trace them tonight and see if they left them in, By the way bank 1 sensor 2 are the rear header closer to the fire way?