Have a problem!!!

[FaSt ReD SrT10]

Hey guys... I have a pretty bad problem on my hands... and I say pretty bad because its not the downstream 02 sensors... its the drivers side upstream 02 sensor... My truck is throwing the code...

P0031-O2 SENSOR 1/1 HEATER CIRCUIT LOW

Now... I have replaced this sensor 2 times already, and that is not the problem... And what is a heater circuit??? Is there anything I can change out, check, or replace to get rid of this code? I have Bommer's Catless mid pipes on the truck as well... I dont know what to do.

I dont want to take any chances with anything being that the upstream ones are the ones that the truck learns the A/F from...

So what would you guys all do?

Thanks for any help you can give me!!!

 

[Marc T]

I would say call Boomer, but his is laid up right now!!

Did you disconnect the Battery and letn it sit for awhile??

Let us know what the outcome is!

 

[womsterr]

I would not bother worrying about it. Its electrical - warranty it!

 

[JTS VENOM PERFORMANCE]

pm stingray he may be able to help

kinda sounds like it may be too far downstream might have to move it

 

[FaSt ReD SrT10]

Ok Guys... had a hunch to check the fuses and there it was!!! #49 for the o2 sensors!!! No engine light now and it is running like one FAST Mofo in this cold weather!!!

Thanks for the suggestions!!!

 

[Marc T]

COOOLLLLLL!!:rock: