P158F BMW Fault Code
Check P158F OBD Fault Code ReasonThe issue covered by the bulletin involves a power steering noise/whine or fluid leak from the power steering pump, gear or high pressure side power steering hose during extreme low outdoor temperature operation.
P158F Code Symptoms :
When you turn on the ignition, the Service Engine Soon or Check Engine P158F light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the P158F!
Diagnosis And Repairing P158F
P158F OBD2 specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.
How to fix P158F code ?
- Continuous oil flow to the VCT piston chamber
- Faulty Crankshaft Position Sensor (POS)
- Ignition misfiring
- 1Camshaft Position Sensor circuit poor electrical connection
