2015 Sonic LT CEL and weird codes

[Ericcarob]

Hey there, I have a 2015 Chevy sonic lt and I’ve spent about 1800$ in the past three weeks trying to get an issue resolved that still has me unable to drive.
Check engine light comes on and off depending on how it’s feeling and anytime I’m in drive with my foot on the brake (at a red light or stop sign) my car just idles down and shuts off.
I’ve consulted two mechanics that haven’t been able to fix this problem so here I am.
Here are the codes that do pop up when the CEL is on.
any help or ideas would be appreciated

 

[Emma’s sonic]

I see it's been some time since this post and I see no responses. May I ask if this is the 1.8L or 1.4?
I have the 1.4L. I have no useful advice to help with your issue but I am interested in the progress so please keep posting.

 

[logandsawman]

Maybe you did, but with an issue like this I would go to the dealership.

We have a 2013 LT with 1.8L. There were some sensor issues the first two years of ownership, apparently had a lot to do with the lake effect of living near Lake Superior.

Once we moved further away, there have been zero sensor issues. We had one exhaust issue, was noticeable because the car was louder. Still no check engine light. Took it to the dealer and there was an exhaust system leak that they repaired, cost somewhere around 400 - 600 dollars, but totally fixed it .

We must be lucky, at 170,000 miles we have experienced few problems with our sonic.

The only suggestion to the designers would have been to beef up the front end components, they weren't designed for our brutal Minnesota roads and potholes.

Dave