Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello and welcome to just answer. I value your input to my questions so I may better help you. The codes you supplied are for the o2 sensors the upstream ones The first ones . You can replace just one but the age of your vehicle I would strongly replace both bank i &2 as they won't be too far apart failing, I will supply you with a pic of all o2 sensors. Trouble Code's.....P0131 and P0151.......may mean that one or more of the following has happened:
If you decide to replace the sensors yourself I would advise you to take care in what make you use as some aftermarket ones have been giving issues.
Yes definitely it will go into fail safe or closed loop and the ECU will take an average reading to run all other systems . This is what we do in shops ,always repair the obvious rather then scratching our heads and guessing.
Just checking in to see if you require further help if not could you please take the time to rate my help. Thank you.