BMW DTC P3058 – Injector 12 Stuck Open
DTC P3058 meaning on BMW
The Diagnostic Trouble Code (DTC) P3058 for BMW indicates that Injector 12 is stuck open. This means that the fuel injector in cylinder 12 is not closing properly, causing an excessive amount of fuel to be injected into the combustion chamber.
BMW DTC P3058 symptoms
Symptoms of DTC P3058 on a BMW may include rough idling, misfiring, decreased fuel efficiency, black smoke from the exhaust, and potentially engine stalling. The Check Engine Light may also be illuminated on the dashboard.
BMW DTC P3058 causes
The most common causes of DTC P3058 on a BMW include a faulty fuel injector, wiring issues, or a problem with the Engine Control Module (ECM). Dirt or debris blocking the injector nozzle can also lead to it being stuck open.
BMW DTC P3058 seriousness
Ignoring DTC P3058 can lead to poor engine performance, decreased fuel economy, and potential damage to the catalytic converter. It is important to address this issue promptly to prevent further complications.
How to diagnose DTC P3058 on BMW
To diagnose DTC P3058 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the ECM. They would then perform a visual inspection of the injector and its wiring to check for any obvious issues. Testing the injector’s resistance and checking for proper voltage signals can help pinpoint the cause of the problem.
How to fix DTC P3058 on BMW
Fixing DTC P3058 on a BMW may involve replacing the faulty fuel injector in cylinder 12. It is also important to inspect and repair any damaged wiring or connectors associated with the injector. Cleaning the injector nozzle and ensuring proper fuel pressure can help prevent future issues. After the repairs are made, clearing the fault codes and performing a test drive to verify the fix is recommended.
How to erase DTC P3058 on BMW
To erase DTC P3058 on a BMW, a diagnostic scanner can be used to clear the fault codes stored in the ECM. After the repairs have been completed and the issue causing the fault code has been resolved, the codes can be cleared to reset the Check Engine Light and ensure that the system is functioning properly.
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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