BMW DTC P22E6 – Cylinder 4 Alternative Fuel Injector Control Circuit Low
DTC P22E6 meaning on BMW
The Diagnostic Trouble Code (DTC) P22E6 for BMW indicates an issue with the Cylinder 4 Alternative Fuel Injector Control Circuit registering a low voltage. This code specifically relates to the fuel injector control circuit for cylinder 4 in the engine, which is responsible for delivering fuel to that particular cylinder.
BMW DTC P22E6 symptoms
Symptoms associated with DTC P22E6 on a BMW may include rough idling, engine misfires, decreased fuel efficiency, and potentially an illuminated check engine light on the dashboard. The vehicle may also experience a lack of power or acceleration due to the fuel injector circuit issue.
BMW DTC P22E6 causes
The causes of DTC P22E6 on a BMW can vary, but common reasons include a faulty fuel injector for cylinder 4, wiring or connection issues in the injector circuit, a defective Engine Control Module (ECM), or a poor electrical connection in the circuit.
BMW DTC P22E6 seriousness
While DTC P22E6 may not cause immediate harm to the vehicle, it is important to address this issue promptly to prevent potential engine damage or further complications. Ignoring this fault code can lead to decreased engine performance and efficiency over time.
How to diagnose DTC P22E6 on BMW
To diagnose DTC P22E6 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and perform a thorough inspection of the fuel injector for cylinder 4, as well as the associated wiring and connections. Testing the injector’s resistance and checking for proper voltage supply are common diagnostic steps.
How to fix DTC P22E6 on BMW
Fixing DTC P22E6 on a BMW often involves replacing the faulty fuel injector for cylinder 4 if it is determined to be the root cause of the issue. Additionally, repairing any damaged wiring or connections in the injector circuit and ensuring proper electrical continuity can help resolve the problem. It is recommended to follow manufacturer guidelines and use OEM parts for the repair.
How to erase DTC P22E6 on BMW
Once the underlying issue causing DTC P22E6 on a BMW has been addressed and fixed, the fault code can be erased using a diagnostic scanner. By clearing the code, the vehicle’s ECM will reset and monitor the system for any recurring faults. It is important to ensure that the repair has been successful before clearing the code to prevent it from reoccurring.
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.