BMW DTC P142E – Cylinder Injection Cut-Off, Pressure Too Low in High-Pressure System (Bank 1)
DTC P142E meaning on BMW
The DTC P142E code on a BMW indicates a Cylinder Injection Cut-Off, Pressure Too Low in the High-Pressure System on Bank 1. This means that there is an issue with the fuel injection system in one of the cylinders on Bank 1, resulting in low pressure in the high-pressure fuel system.
BMW DTC P142E symptoms
Symptoms of the BMW DTC P142E code may include rough idling, engine misfires, loss of power, decreased fuel efficiency, and potentially an illuminated check engine light on the dashboard.
BMW DTC P142E causes
The causes of the DTC P142E code on a BMW can vary, but common reasons include a faulty fuel injector, a clogged fuel filter, a malfunctioning fuel pump, or issues with the fuel pressure sensor.
BMW DTC P142E seriousness
Ignoring the DTC P142E code on a BMW can lead to poor engine performance, reduced fuel efficiency, and potential damage to the engine over time. It is important to address this issue promptly to prevent further complications.
How to diagnose DTC P142E on BMW
To diagnose the DTC P142E on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer system. They would then perform a visual inspection of the fuel system components, check fuel pressure, and conduct tests on the fuel injectors to identify the root cause of the issue.
How to fix DTC P142E on BMW
Fixing the DTC P142E code on a BMW may involve replacing a faulty fuel injector, cleaning or replacing the fuel filter, repairing or replacing the fuel pump, or addressing any issues with the fuel pressure sensor. It is recommended to follow the manufacturer’s repair procedures and use quality replacement parts to ensure proper functionality.
How to erase DTC P142E on BMW
Once the underlying issue causing the DTC P142E code on a BMW has been resolved, the code can be cleared using a diagnostic scanner. The scanner can reset the check engine light and erase the fault code from the vehicle’s computer system, indicating that the problem has been addressed.
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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