( TF09E4DA20300000000HAAT14 )
Fails emission test (MIL works OK, no DTCs set)

Diagnostic procedure
  1. Inspect the three way catalytic converter (TWC).
  2. Check the spark plugs.
  3. Test the fuel pressure.
  4. Test the injectors.
  5. Check the EVAP system.
  6. Troubleshoot the VTEC system oil pressure.
Also check for
  • Fuel contamination
  • Low compression
  • Broken cam chain