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International Automotive Technicians Network
2021 Buick Encore Preferred 1.4L MIL Lamp on
Posted to GM Driveability on 3/25/2026 3 Replies

First off IATN won't let me put in the correct vehicle information with the VIN. The car is a 2021 Buick Envision with a 2.0L Turbo Engine. The car came in this winter with a CEL on and DTC P04FB present. We found bulletin #PIP6093 applied to the concer...

3 Replies Received (View Replies)

  Related Documents & Media  2021 Buick Encore Preferred

 
Message Closed w/FIX

car Vehicle Data

2021 Buick Encore Preferred

VIN LRBFZPR47M
Engine1.4 L / 4 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursCold

Trouble Codes

P04FBCrankcase Ventilation Hose Connection Pressure Sensor Performance
Message Closed w/FIX

car Vehicle Data

2021 Buick Encore Preferred

VIN LRBFZPR47M
Engine1.4 L / 4 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursCold

Trouble Codes

P04FBCrankcase Ventilation Hose Connection Pressure Sensor Performance