Recently I was driving my truck and my wideband wont read anything other than 14.7. No matter the throttle position it's 14.7. Every once in a great while it goes to 14.9...anybody have any clues as to what causes this or is my wideband done for? it's a autometer cobalt and it's a maybe 2 year old...

 

Sounds like you have a really good tune

Have you tried calibrating it?

 

I've tried everything. Except changing the sensor itself.

 

Does it say 14.7 even with the engine off and just the key turned? Are you sure its even hooked up?

 

Yeah it's hooked up. I've unhooked it, hooked it back up. All that stuff except change the sensor itself...guess that's what i'm doin this weekend...

 

How about my first question?

 

Negative

 

Just so I understand this correctly, this WB has been in the truck, and working correctly for about 2 years? Has any work been done on the truck recently? Anything that might have pulled a wire loose inside the dash(or elsewhere), or welding on the truck?

 

Correct. No work done.

 

You need to replace the sensor. Widebands dont last nearly as long as the stock narrowbands. I would replace them at least once a year/ 10k miles.