New Codes P0133 and P0171 after CAT replacement
OK - Now what?!
No major issues with my 2014 until 18,690 when P20EE first appeared. They did a manual regen to clear the code but it reappeared not long after. The dealer installed a new CAT at 18,729 miles.
At 19,422 or 692 miles later the MIL illuminated for a P0133 code - O2 Sensor Circuit Slow Response (Bank 1 Sensor 1). This disappeared about 56 miles later.
Today, at 19,703 or 974 miles after replacing the CAT, the MIL illuminated again and I read the P0133 code again as well as P0171 - System too lean (Bank 1).
What should I expect now???
2014 Jeep Grand Cherokee Overland 4X4 EcoDiesel | Granite / Black | ORAII | Adv Tech GRP | Engine Block Heater