DTC BMW P0172 Short Explanation
Channel: Maxidot
Date: 2020-10-19

The video focuses on the basic BMW specific diagnostic error code.
Contents:
0:21 Basic DTC analysis according to OBD2 protocol standard.
1:48 Insight into programming
- an explanation of what a bit is and how a byte is formed
- decoding the Error Code to the base programming
2:58 A diagnostically understandable description of the Diagnostic Trouble Code
3:05 Basic error definition
- Possible causes or errors of the car and its parts describing the mentioned error

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Make: 
BMW 
Code: 
P0172 
Definition: 
Fuel System Too Rich (Cylinder Bank 1) 
Description: 
Key on or engine running, all electrical components off and coolant temperature at least 80 degrees Celsius; and the DME detected the Bank 1 Adaptive Fuel Control System reached its rich correction limit (a rich A or F condition). The fuel status is in a clo 
Cause: 
Camshaft timing is incorrect, or the engine has an oil overfill condition
EVAP vapor recovery system failure (may be pulling vacuum)
Fuel pressure regulator is damaged or leaking
HO2S element is contaminated with alcohol or water
MAF or MAP