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2018 Chevrolet Suburban Premier 5.3L MIL Lamp on
Posted to GM Driveability on 1/8/2025 9 Replies

Hey all, thank you for taking the time to look at this. Vehicle is my wifes car, she brought it in last night due to a MIL that just illuminated. I found a P015b code for delayed O2 B1S1 response. I checked fuel trims, LTFT was -22 on both banks. I removed...

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car Vehicle Data

2018 Chevrolet Suburban Premier

VIN 1GNSKJKC5J
Engine5.3 L / 8 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P015BDelayed response rich to lean B1S1
P06DDengine oil pressure control solenoid valve struck
Open Help Request

car Vehicle Data

2018 Chevrolet Suburban Premier

VIN 1GNSKJKC5J
Engine5.3 L / 8 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P015BDelayed response rich to lean B1S1
P06DDengine oil pressure control solenoid valve struck