New code popped up!

[Bigredmariner]

I don't have a pre-cat
After it piled up and took out my main cat, I only replaced the main cat.

The after cat O2 sensor should be the same one as the front pre-cat sensors, right?

It could be an exhaust leak, I suppose... Though, a faulty O2 sensor is still a possibility... Or both

Generally the P0137 only kicked in under load... Like going up a hill, foot to the floor in 5th gear


And Faisal, removing the cats is a federal offense for us

On yours I'm not sure but I do know mine are different, the construction may be the same but the plugs are different. That leads me to believe that they are different some how.

 

[drperry]

I don't have a pre-cat
After it piled up and took out my main cat, I only replaced the main cat.

The after cat O2 sensor should be the same one as the front pre-cat sensors, right?

It could be an exhaust leak, I suppose... Though, a faulty O2 sensor is still a possibility... Or both

Generally the P0137 only kicked in under load... Like going up a hill, foot to the floor in 5th gear


And Faisal, removing the cats is a federal offense for us

On yours I'm not sure but I do know mine are different, the construction may be the same but the plugs are different. That leads me to believe that they are different some how.

GM Parts Direct became a PITA when they stopped listing part numbers in the parts catalogue

 

[Bigredmariner]

Believe me I Know, I got so damn confused I ended up calling in a favor.

 

[drperry]

From what I've found... They're not the same...

Pre-Cats are 48-01740 AD
Post-Cat is 48-01740 OD

 

[Bigredmariner]

Send Rich (MS3Dale) a pm with your VIN, he helped me out maybe he can help you out too.

 

[drperry]

Cool dealio!

I'll look into that when I get home from work tonight

Thanks!