After swapping O2 sensors, getting 7 error codes

[Charlie Evans]

Hey fellow Rammers.

I need some advice please. I finally broke down and swapped out my O2 sensors in my 08 Ram 1500. Before the swap I was getting no codes, now after changing them I started getting:
P0132 O2 sensor 1/1 circuit high,
P0138 O2 sensor 1/2 circuit high,
P0152 O2 sensor 2/1 circuit high,
P0158 O2 sensor 1/2 circuit high.
I tried to reset the codes and turned it on and off like 50 times codes still there. Today I drove it 100 miles and check engine light went off at a stop. Started it back up and started driving home and it came back on again. But now I have all of the above and
P1128 closed loop fueling not achieved bank 1
P0300 cylinder misfire faul detected random cylinders.
Any ideas where I should start looking?
Did I not torque em down enough? Was told 25ft lbs
Like I said before the swap I had no error codes.
Thanks for any advice guys (and/or gals)

 

[Travelin Ram]

Parts source? OEM or aftermarket?

A scanner capable of reading live data will give you the skinny on an O2 sensor problem better than any other method.

 

[Daw14]

Are these OEM sensors? If not they need to be.

 

[turkeybird56]

Are these OEM sensors? If not they need to be.

DITTO ^^^^^^^^^^^^^^^. OP, did U go way of aftermarket? IF U did, U need to go back and get all (4) OEM sensors and insure you put the correct sensor in each place, as in upper/lower bank. Also check to insure all connections to the sensors are on proper and tight. As far as TQ specs, U just need to Look up and Verify TQ specs.

 

[Charlie Evans]

I'm now not sure if they are OEM or not. A friend got them for his truck and then totalled the truck so I got them. He says he thought the were OEM but isn't sure now where he even got them. I think I'll just buy some new ones and try again.

 

[HemiLonestar]

Nice and easy for 2008, both up and downstream are the same OEM p/n: 56029049AA

 

[rzr6-4]

No codes before......why did you switch them in the first place?

 

[Charlie Evans]

No codes before......why did you switch them in the first place?

Trying to get better mileage. Down to almost 12 mpg. Was time for new ones (still the originals as far as I know. I've had it for 12 or 13 yrs and I know I've never changed them.