Difference between revisions of "16816/P0432"
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(Created page with '== 16816/P0432 - Main Catalyst: Bank 2: Efficiency Below Threshold == ==== Possible Symptoms ==== * MIL on ==== Possible Causes ==== * Failed ceramic monolith in Catalyst * F…') |
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* Failed ceramic monolith in Catalyst | * Failed ceramic monolith in Catalyst | ||
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* Leak in exhaust system | * Leak in exhaust system | ||
* Firmware issue with ECM | * Firmware issue with ECM | ||
Revision as of 11:33, 9 February 2011
16816/P0432 - Main Catalyst: Bank 2: Efficiency Below Threshold
Possible Symptoms
- MIL on
Possible Causes
- Failed ceramic monolith in Catalyst
- Failed O2 sensors
- Leak in exhaust system
- Firmware issue with ECM
Possible Solutions
- Inspect cat for internal rattle, replace if needed.
- Perform Readiness test for Catalyst.
- Confirm pre and post O2 sensor are working to design.
- Confirm there are no exhaust leaks.
- Check ECM to see if there is a firmware update.
Special Notes
- For Audi engine codes ART or AKB, please see TSB 26-04-01
- For Audi engine code ATQ, please see TSB 26-08-07
- For Volkswagen engines, please see TSB 01-07-07
- As per TSB 01-07-54, do not replace the ECM for this DTC. Please see TSB for complete details.