BMW DTC P1193 – Post Catalyst Fuel Trim System (Bank 2)
DTC P1193 meaning on BMW
The DTC P1193 on a BMW indicates an issue with the Post Catalyst Fuel Trim System in Bank 2. This fault code is triggered when the engine control module detects that the fuel mixture is too lean or too rich after the catalytic converter in Bank 2.
BMW DTC P1193 symptoms
Symptoms of the BMW DTC P1193 may include:
- Check Engine Light illuminated
- Poor fuel economy
- Engine hesitation or misfire
- Rough idling
- Reduced engine performance
BMW DTC P1193 causes
The common causes of the BMW DTC P1193 may include:
- Faulty oxygen sensor
- Vacuum leaks
- Fuel pressure regulator issues
- Catalytic converter problems
- Exhaust system leaks
BMW DTC P1193 seriousness
Ignoring the DTC P1193 on a BMW can lead to potential damage to the catalytic converter and other engine components. It can also result in poor fuel efficiency and increased emissions. It is recommended to address this issue promptly to prevent further damage.
How to diagnose DTC P1193 on BMW
To diagnose the DTC P1193 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the oxygen sensor in Bank 2
- Check for vacuum leaks in the intake system
- Test the fuel pressure regulator
- Inspect the catalytic converter for damage
How to fix DTC P1193 on BMW
To fix the DTC P1193 on a BMW, the following steps may be taken:
- Replace the faulty oxygen sensor
- Repair any vacuum leaks in the intake system
- Replace the fuel pressure regulator if necessary
- Repair or replace the catalytic converter if damaged
- Clear the fault codes and reset the Check Engine Light
How to erase DTC P1193 on BMW
To erase the DTC P1193 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the engine control module. Once the codes are cleared, the Check Engine Light should turn off. It is important to address and fix the underlying issue causing the fault code before clearing it.
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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