Check engine light

Asked by Hawaii168 Oct 14, 2017 at 10:54 PM about the 2015 Chevrolet Suburban 1500 LT 4WD

Question type: Maintenance & Repair

Regarding check engine light ,any have same problem with me , about check
engine on , check 1 day then off three or four day back on again , I scanned
code is P2099 bank 2  I just change it oxygen sensor upstream 2 week ago !
The problem engine light comes back on again ,please !  Anyone can solve
this problem , please! Let me know, Thanh a lots!

1 Answer
59,755

enginecreator answered 7 years ago

Need to look for why that code could set not just the sensor setting code as it is reporting there is a issue, it does not mean that sensor is bad. May be dirty injectors, low fuel pressure, dirty air filter, vacuum leak, bad spark plug or plug wire, loose connection or many others. So there is a issue(s). Not all the time. Look up all possible reason for that code to come up and what to look at to find the problem.

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