BMW DTC P142F – Cylinder Injection Cut-Off, Pressure Too Low in Low-Pressure System
DTC P142F meaning on BMW
The DTC P142F code on a BMW indicates a Cylinder Injection Cut-Off, Pressure Too Low in the Low-Pressure System. This fault code is related to the fuel injection system and specifically points to a problem with low pressure in the fuel system that is causing the engine control module to cut off fuel injection to one or more cylinders.
BMW DTC P142F symptoms
Symptoms of the BMW DTC P142F code may include rough idling, misfires, loss of power, poor acceleration, and potentially stalling. The Check Engine Light (CEL) may also be illuminated on the dashboard.
BMW DTC P142F causes
The causes of the DTC P142F code on a BMW can vary, but common reasons include a faulty fuel pump, clogged fuel filter, fuel pressure regulator issues, fuel line leaks, or a malfunctioning fuel pressure sensor.
BMW DTC P142F seriousness
Ignoring the DTC P142F code on a BMW can lead to poor engine performance, reduced fuel efficiency, and potential engine damage over time. It is important to address this issue promptly to prevent further complications.
How to diagnose DTC P142F on BMW
To diagnose the DTC P142F code on a BMW, a mechanic would typically start by using a diagnostic scanner to retrieve the fault codes stored in the engine control module. They would then perform a visual inspection of the fuel system components, check fuel pressure using a gauge, and test the fuel pump and related components for proper operation.
How to fix DTC P142F on BMW
Fixing the DTC P142F code on a BMW may involve replacing the fuel pump, fuel filter, fuel pressure regulator, or any other faulty components identified during the diagnostic process. It is important to address the root cause of the low fuel pressure issue to ensure proper engine performance.
How to erase DTC P142F on BMW
Once the underlying issue causing the DTC P142F code on a BMW has been fixed, the fault codes can be cleared using a diagnostic scanner. This will reset the Check Engine Light and allow the vehicle’s engine control module to monitor the system for any new faults.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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