BMW DTC P2074 – Manifold Absolute Pressure/Mass Air Flow – Throttle Position Correlation at Higher Load
DTC P2074 meaning on BMW
DTC P2074 on a BMW indicates a problem with the correlation between the Manifold Absolute Pressure (MAP) sensor, Mass Air Flow (MAF) sensor, and Throttle Position Sensor (TPS) at higher engine loads. This means that the ECM (Engine Control Module) has detected that the readings from these sensors do not align as expected, potentially leading to drivability issues.
BMW DTC P2074 symptoms
Symptoms of DTC P2074 on a BMW may include rough idling, reduced engine performance, hesitation or surging under acceleration, stalling, and in some cases, the Check Engine Light may illuminate on the dashboard.
BMW DTC P2074 causes
The causes of DTC P2074 on a BMW can vary, but common reasons include a faulty MAP sensor, MAF sensor, TPS, vacuum leaks, wiring issues, or a problem with the ECM itself. It is essential to perform a thorough diagnosis to pinpoint the exact cause.
BMW DTC P2074 seriousness
While DTC P2074 may not always result in immediate drivability issues, it can affect the overall performance and efficiency of the vehicle. Ignoring this fault code can lead to further damage to engine components over time, so it is crucial to address it promptly.
How to diagnose DTC P2074 on BMW
To diagnose DTC P2074 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform a series of tests. This may involve checking the sensor readings, inspecting for vacuum leaks, testing sensor wiring, and verifying the ECM’s operation.
How to fix DTC P2074 on BMW
Fixing DTC P2074 on a BMW involves identifying and addressing the root cause of the issue. This could include replacing a faulty sensor, repairing wiring connections, fixing vacuum leaks, or reprogramming the ECM if necessary. Once the underlying problem is resolved, the fault code should clear.
How to erase DTC P2074 on BMW
After fixing the issue causing DTC P2074 on a BMW, the fault code can be cleared using a diagnostic scanner. By accessing the ECM and selecting the option to clear codes, the DTC P2074 should be erased from the system. It is important to ensure that the underlying problem has been resolved before clearing the code.
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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.