BMW DTC P2428 – Exhaust Gas Temperature Too High (Bank 1)
DTC P2428 meaning on BMW
DTC P2428 on a BMW indicates that the exhaust gas temperature sensor for Bank 1 is reading a temperature that is higher than the normal operating range. This can be caused by various factors that lead to excessive exhaust gas temperatures in the system.
BMW DTC P2428 symptoms
Symptoms of DTC P2428 on a BMW may include:
- Check Engine Light (CEL) illuminated
- Reduced engine performance
- Increased fuel consumption
- Excessive exhaust smoke
BMW DTC P2428 causes
The possible causes of DTC P2428 on a BMW include:
- Faulty exhaust gas temperature sensor
- Exhaust system leaks
- Engine running too lean
- Issues with the catalytic converter
BMW DTC P2428 seriousness
DTC P2428 should not be ignored as it can lead to potential damage to the engine and emissions system. Driving with this fault can result in decreased fuel efficiency and performance, and may cause further issues if left unresolved.
How to diagnose DTC P2428 on BMW
To diagnose DTC P2428 on a BMW, a mechanic would typically:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the exhaust gas temperature sensor for Bank 1
- Check for exhaust leaks or other issues in the exhaust system
- Perform a visual inspection of the catalytic converter
How to fix DTC P2428 on BMW
To fix DTC P2428 on a BMW, the following steps may be taken:
- Replace the faulty exhaust gas temperature sensor
- Repair any exhaust leaks or damaged components
- Address any issues causing the engine to run too lean
- Inspect and potentially replace the catalytic converter if necessary
How to erase DTC P2428 on BMW
After fixing the underlying issue causing DTC P2428 on a BMW, the fault code can be erased using a diagnostic scanner. This will reset the Check Engine Light and clear the code from the vehicle’s memory.
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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