Owlcapwn
New member
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- Sep 4, 2025
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- Buick Ownership
- 2014 Buick Verano
I have a 2014 Buick Verano, Other day heading to work car randomly started Shuddering at low rpm when you would get on throttle if i downshifted and got it above 2.5k it would clear up.
Car threw a check engine light followed by a service Stabilitrack notice on the dash limped it to work and towed it home. I got the scanner on it today and I'm getting multiple codes for Slow responding 02, high voltage issues 02, Misfire Cylinder 4. (I dont have the exact codes on hand at the moment) I couldnt find any codes in the transmission, the stability system, or any other system. I pulled the spark plugs they all looked the same and cylinder 4 wasn't wet or a significantly different color. I did pull up the 02 streams and at idle they were fluctuating from .48-.53 on bank 1 and bank 2 was staying around .58-.83. Bank 1 would randomly drop to .05v and bank 2 would drop to about .35v shortly after then come right back. I am having issues pulling Data from the ecu I did clear it and take it for a small drive to see what would come back and when all the lights came back on and it threw the alerts it froze my scanner so i wasn't able to see what changed. Any insight would be appreciated I'm honestly not sure where to start and don't want to just start throwing parts at it.
Car threw a check engine light followed by a service Stabilitrack notice on the dash limped it to work and towed it home. I got the scanner on it today and I'm getting multiple codes for Slow responding 02, high voltage issues 02, Misfire Cylinder 4. (I dont have the exact codes on hand at the moment) I couldnt find any codes in the transmission, the stability system, or any other system. I pulled the spark plugs they all looked the same and cylinder 4 wasn't wet or a significantly different color. I did pull up the 02 streams and at idle they were fluctuating from .48-.53 on bank 1 and bank 2 was staying around .58-.83. Bank 1 would randomly drop to .05v and bank 2 would drop to about .35v shortly after then come right back. I am having issues pulling Data from the ecu I did clear it and take it for a small drive to see what would come back and when all the lights came back on and it threw the alerts it froze my scanner so i wasn't able to see what changed. Any insight would be appreciated I'm honestly not sure where to start and don't want to just start throwing parts at it.
