Before i did the swap I had a pre-cat o2 go out on the passenger side, so i replaced it w/a Bosch part # 13178 OE replacement. Well it threw a code (can't remember which one) but it was stating the heating element in the o2 wasn't working. So i held off and did the swap and replaced it with another one and changed the driverside too. And they both don't heat up. Could it be an electrical issue? After awhile when the exhaust gets hot they start working, I'm stumped b/c these are the correct ones.

 

Sometimes long tube headers don't hold in enough heat and you get O2 sensor heater codes

 

but what would cause the o2's from not heating up on there own like they should?

 

check the fuses

 

They're all good from what I seen

 

You should be running AC Delco or Denso O2 sensors. I have seen too many aftermarket sensors not function correct.

 

do you happen to know what part numbers i'd need of either the 2?

 

is there a ground in the harness I may have overlooked or isn't getting a good enough ground?

 

Why not have your tuner delete the sensors completely? That way you never have the issue again.

 

I don't want to go with an SD tune, which is What would have to happen if they were