BMW DTC P1124 – Differential Pressure Sensor Intake Manifold Offset (Bank 1)
DTC P1124 meaning on BMW
DTC P1124 on a BMW indicates an issue with the Differential Pressure Sensor Intake Manifold Offset on Bank 1. This sensor is responsible for measuring the pressure difference between the intake manifold and the atmosphere. The offset value is used by the engine control module to calculate the correct air-fuel mixture for optimal engine performance.
BMW DTC P1124 symptoms
Symptoms of DTC P1124 on a BMW may include:
- Check Engine Light illuminated
- Reduced engine performance
- Poor fuel efficiency
- Rough idling or stalling
BMW DTC P1124 causes
Common causes of DTC P1124 on a BMW include:
- Faulty Differential Pressure Sensor
- Vacuum leaks in the intake system
- Wiring or connector issues
- Intake manifold gasket leaks
BMW DTC P1124 seriousness
DTC P1124 should not be ignored as it can lead to poor engine performance and reduced fuel efficiency. Ignoring this code may result in further damage to engine components over time.
How to diagnose DTC P1124 on BMW
To diagnose DTC P1124 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the Differential Pressure Sensor for any signs of damage or malfunction
- Check for vacuum leaks in the intake system
- Inspect wiring and connectors for any issues
How to fix DTC P1124 on BMW
To fix DTC P1124 on a BMW, the following steps may be taken:
- Replace the faulty Differential Pressure Sensor
- Repair any vacuum leaks in the intake system
- Fix any wiring or connector issues
- Address any intake manifold gasket leaks
How to erase DTC P1124 on BMW
To erase DTC P1124 on a BMW, the fault code can be cleared using a diagnostic scanner. After the necessary repairs have been made, the code can be cleared to reset the Check Engine Light and monitor the system for any recurring issues.
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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