check your air intake bolts they come loose after a while ,5 of them ,will send p code ,its not your o2 sensor its loose intake bolts .common for these cars
@@chotobigboy9365 I bout this car at the auction and it sat for a long time before I got to it. I sold it to my friend and I ended up replacing the two batteries. It runs fine now
I changed my main battery. The code went away for a week or two. Than it came back on. It could be the auxiliary battery needs to be replaced or the dual battery control module needs to be replaced
You don't need to disconnect the mega fuse wires unless you are Changing theat module which is the dual battery control module
The auxiliary battery in the trunk of my 2014 Malibu only has 10V. I think I'll have to change it 😅
yes, at 10v it will give you some problems
Great point about the alternator load
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check your air intake bolts they come loose after a while ,5 of them ,will send p code ,its not your o2 sensor its loose intake bolts .common for these cars
@@chotobigboy9365 I bout this car at the auction and it sat for a long time before I got to it. I sold it to my friend and I ended up replacing the two batteries. It runs fine now
I changed my main battery. The code went away for a week or two. Than it came back on. It could be the auxiliary battery needs to be replaced or the dual battery control module needs to be replaced
the customer came back a month later and I had to changed the auxiliary battery as well
after I replaced the axillary battery, he didn't have a problem.
@@antonioaguirre6166 that's what I'm doing today.
Problem is not the main battery it's the little oxiliary battery in the trunk
if your main battery is up to specs then yes, replace the little battery.