Lower T Stat question or concern

[Ole Buck]

I joined the the masses when I redone my engine and went with a 180 t-stat over the recommended factory one. I have only about 2 thousand miles so far and I intermittently get an bank 2 operating in lower level code. From what I I have gathered it’s the south end 02 sensor or lower sensor giving a reading of the cat that the pcm is not happy with. It’s new cats both sides and all new Mopar sensors. Could it be caused by the engine not getting to proper operating temps therefore causing the fuel to combust improperly or at the right temps and not getting a clean burn?

 

[Oliver Closehauf]

mmmmmm Possibly? My wife inherited a 94 Dakota with a 318 that ran great but got terrible milage and ran really cool. I had to block off the radiator with cardboard to get it up to temp where it would lean out. I had everything to do the thermostat change when the frame rusted in half at the A pillars so I never got to actually test it.

But if your o2 sensor is reading low, I believe its reading rich.

 

[Tray Burge]

I joined the the masses when I redone my engine and went with a 180 t-stat over the recommended factory one. I have only about 2 thousand miles so far and I intermittently get an bank 2 operating in lower level code. From what I I have gathered it’s the south end 02 sensor or lower sensor giving a reading of the cat that the pcm is not happy with. It’s new cats both sides and all new Mopar sensors. Could it be caused by the engine not getting to proper operating temps therefore causing the fuel to combust improperly or at the right temps and not getting a clean burn?

Yes, my hemi mechanic said not to do it because it wouldn't allow the engine to get to the proper operating temp.
Said people didn't know what the hell they were doing by doing that.

 

[Ole Buck]

Well I put my OEM stat back in will do an update in a few miles