BMW DTC P3055 – Injector 9 Stuck Open
DTC P3055 meaning on BMW
DTC P3055 on a BMW indicates that Injector 9 is stuck open. This means that the fuel injector for cylinder 9 is not closing properly, causing an excessive amount of fuel to be injected into the combustion chamber.
BMW DTC P3055 symptoms
Symptoms of DTC P3055 on a BMW may include rough idling, misfires, decreased fuel efficiency, black smoke from the exhaust, and potentially engine stalling.
BMW DTC P3055 causes
The most common causes of DTC P3055 on a BMW include a faulty fuel injector, wiring issues, or a problem with the Engine Control Module (ECM).
BMW DTC P3055 seriousness
DTC P3055 should be taken seriously as it can lead to engine performance issues, increased fuel consumption, and potential damage to the catalytic converter if left unresolved.
How to diagnose DTC P3055 on BMW
To diagnose DTC P3055 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform a visual inspection of the fuel injector and its wiring. They may also conduct tests to check the injector’s resistance and functionality.
How to fix DTC P3055 on BMW
Fixing DTC P3055 on a BMW usually involves replacing the faulty fuel injector for cylinder 9. Additionally, any damaged wiring should be repaired or replaced. After the repairs are made, the system should be cleared of any remaining fault codes.
How to erase DTC P3055 on BMW
To erase DTC P3055 on a BMW, a mechanic can use a diagnostic scanner to clear the fault code from the ECM’s memory. Once the repair has been completed and the issue resolved, the code can be erased to reset the system.
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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