heated o2 sensor error codes

[sprkchser]

I just finished doing a long block replacement of the 4.7 in my 05 ram 1500. Runs great, but keep getting o2 sensor codes that were not present before the rebuild. Replaced all four o2 sensors and still the same 4 codes. Went to the fuse box to check the fuse and relay - no fuse or relay present. Installed the relay and a fuse, cleared codes, now I get codes for three of the sensors. Any tips on what to look for next?

 

[427invader]

Not sure. I get P0133 (O2 sensor circuit slow response Bank 1 Sensor 1). I put in the following with no avail: Intake air temp sensor, new O2 sensor, old working O2 sensor from Bank 2 Sensor 1, new intake manifold gasket. Checked the O2 sensor wiring on the vehicle side and all is good. Checked relay and fuse which the box says it for an 8.0l only. Not sure what we could do.

 

[Hagar1]

I just finished doing a long block replacement of the 4.7 in my 05 ram 1500. Runs great, but keep getting o2 sensor codes that were not present before the rebuild. Replaced all four o2 sensors and still the same 4 codes. Went to the fuse box to check the fuse and relay - no fuse or relay present. Installed the relay and a fuse, cleared codes, now I get codes for three of the sensors. Any tips on what to look for next?

First of all, if the Sensors came from Amazon, take them out and get some good ones, first choice would be OE but I have had food luck from major auto parts stores like NAPA.

 

[ibike]

Typical Chrysler electronics. Go oem or get codes. I know it’s stelantis but they still employee Chrysler engineers.