P219 code left bank lean help

[Jcsbadta]

Went to a different dealer after the first one screwed me around. The new dealer  replaced 4 injectors on the side the code is for and I haven’t had a problem since. It’s been about 20,000 miles since and it never has run better even gets better fuel mileage. That code is for injectors imbalance which means that the o2 sensor is picking up one or more injectors not spraying enough fuel so the air fuel ratio is swinging back and forth too much. Good luck they tried a lot of stuff at the first dealer but it did nothing. The only fix is to find the bad injector they just did them all to make it easy and it worked.  

[Bizon14]

On 2/22/2018 at 7:36 PM, Jcsbadta said:

Went to a different dealer after the first one screwed me around. The new dealer  replaced 4 injectors on the side the code is for and I haven’t had a problem since. It’s been about 20,000 miles since and it never has run better even gets better fuel mileage. That code is for injectors imbalance which means that the o2 sensor is picking up one or more injectors not spraying enough fuel so the air fuel ratio is swinging back and forth too much. Good luck they tried a lot of stuff at the first dealer but it did nothing. The only fix is to find the bad injector they just did them all to make it easy and it worked.  

How are things holding up? After changing the injectors did p219a ever come back? 

[J.WELCH]

Had the same issue on my 2017 Silverado. 33000 miles, check engine light came on, reduced power warning message. Took it in to local dealer. They said 2 injectors were failing due to shorting out.