Document ID: chunk:federal_register_of_legislation:F2024L00446:reg:13:p14
Version: federal_register_of_legislation:F2024L00446
Segment Type: reg
Provision Reference: reg 13 (pt 14/23)
Character Range: 1982065–1985139

ignition engines:

              6.4.1.1. After vehicle preconditioning according to paragraph 6.2. of this appendix, the test vehicle is driven over a Type 1 test.

               The MI shall be activated at the latest before the end of this test under any of the conditions given in paragraphs 6.4.1.2. to 6.4.1.6. of this appendix. The MI may also be activated during preconditioning. The Technical Service may substitute those failure modes with others in accordance with paragraph 3.3.3.4. of this annex. However, the total number of failures simulated shall not exceed four (4) for the purpose of type approval.

               In the case of testing a bi-fuel gas vehicle, both fuel types shall be used within the maximum of four (4) simulated failures at the discretion of the Type Approval Authority.

              6.4.1.2. Replacement of a catalyst with a deteriorated or defective catalyst or electronic simulation of a deteriorated or defective catalyst that results in emissions exceeding the NMHC OBD threshold or the NOx OBD threshold set out in paragraph 6.8.2. of this Regulation.

              6.4.1.3. An induced misfire condition according to the conditions for misfire monitoring given in paragraph 3.3.3.2. of this annex that results in emissions exceeding any of the OBD thresholds set out in paragraph 6.8.2. of this Regulation.

              6.4.1.4. Replacement of an oxygen sensor with a deteriorated or defective oxygen sensor or electronic simulation of a deteriorated or defective oxygen sensor that results in emissions exceeding any of the OBD thresholds set out in paragraph 6.8.2. of this Regulation.

              6.4.1.5. Electrical disconnection of the electronic evaporative purge control device (if equipped and if active on the selected fuel type).

              6.4.1.6. Electrical disconnection of any other emission-related powertrain component connected to a computer that results in emissions exceeding any of the OBD thresholds set out in paragraph 6.8.2. of this Regulation (if active on the selected fuel type).

              6.4.2. Vehicles fitted with compression-ignition engines:

              6.4.2.1. After vehicle preconditioning according to paragraph 6.2. of this appendix, the test vehicle is driven over a Type 1 test.

               The MI shall be activated at the latest before the end of this test under any of the conditions given in paragraphs 6.4.2.2. to 6.4.2.5 of this appendix. The MI may also be activated during preconditioning. The technical service may substitute those failure modes by others in accordance with paragraph 3.3.4. (d) of this annex. However, the total number of failures simulated shall not exceed four (4) for the purposes of type approval.

              6.4.2.2. Where fitted, replacement of a catalyst with a deteriorated or defective catalyst or electronic simulation of a deteriorated or defective catalyst that results in emissions exceeding any of the OBD thresholds set out in paragraph 6.8.2. of this Regulation.
              6.4.2.3. Where fitted, total removal of