BMW DTC P1303 – Ignition Monitoring Cylinder 3 Spark Duration Too Short
DTC P1303 meaning on BMW
DTC P1303 on a BMW indicates that the ignition monitoring system has detected that the spark duration for cylinder 3 is too short. This means that the spark plug in cylinder 3 is not firing for the correct amount of time, which can lead to issues with combustion and engine performance.
BMW DTC P1303 symptoms
Symptoms of DTC P1303 on a BMW may include rough idling, misfires, loss of power, decreased fuel efficiency, and potentially an illuminated check engine light on the dashboard.
BMW DTC P1303 causes
The most common causes of DTC P1303 on a BMW include a faulty ignition coil, a malfunctioning spark plug, wiring issues in the ignition system, or a problem with the engine control module (ECM).
BMW DTC P1303 seriousness
While DTC P1303 may not cause immediate catastrophic damage to the engine, it can lead to poor engine performance and decreased fuel efficiency. Ignoring this issue can potentially cause further damage to the engine over time.
How to diagnose DTC P1303 on BMW
To diagnose DTC P1303 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the ECM. They would then inspect the ignition system components, such as the ignition coil, spark plug, and wiring, to identify the root cause of the issue.
How to fix DTC P1303 on BMW
To fix DTC P1303 on a BMW, the faulty ignition coil, spark plug, or wiring should be replaced as needed. It is also recommended to perform a thorough inspection of the entire ignition system to ensure that all components are in good working condition.
How to erase DTC P1303 on BMW
Once the underlying issue causing DTC P1303 on a BMW has been resolved, the fault codes can be cleared using a diagnostic scanner. This will reset the check engine light and allow the vehicle to monitor the system for any new issues.