Originally Posted by awpmech
I did check the o2 senors all but one stay steady. o2s21 changes from .760 to .008 and in between and it does it quickly
I'm sorry to learn of the issue you're experiencing. Have you had a chance to discuss the fault codes set with your dealer?
The PO171 and PO174 codes are associated with the fuel delivery system. In addition to O2 sensors, the Powertrain Control Module (PCM) is also involved.