Document ID: chunk:federal_register_of_legislation:F2012C00283:reg:7:p11
Version: federal_register_of_legislation:F2012C00283
Segment Type: reg
Provision Reference: reg 7 (pt 11/51)
Character Range: 534102–537502

≤ 1760  3400                     2400                              330                         360                   375  705  50   50
III       1760 < RW         4300                     2800                              400                         400                   410  840  50   50
N2        -                 All                      4300                              2800                        400                   400  410  840  50   50

       Key: PI = Positive Ignition, CI = Compression Ignition
  1 Positive ignition particulate mass standards apply only to vehicles with direct injection engines.
  2 PM threshold limit of 80 mg/km shall apply to vehicles of categories M and N with a reference mass greater than 1,760 kg until 1 September 2011 for the type approval of new types of vehicles.
  3 Includes M1 vehicles that meet the "special social needs" definition.

              3.3.3. Monitoring requirements for vehicles equipped with positive-ignition engines;
               In satisfying the requirements of paragraph 3.3.2. the OBD system shall, at a minimum, monitor for:
              3.3.3.1. The reduction in the efficiency of the catalytic converter with respect to emissions of THC and NOx. Manufacturers may monitor the front catalyst alone or in combination with the next catalyst(s) downstream. Each monitored catalyst or catalyst combination shall be considered malfunctioning when the emissions exceed the NMHC or NOx threshold limits provided for by paragraph 3.3.2. of this annex.
              3.3.3.2. The presence of engine misfire in the engine operating region bounded by the following lines:
               (a) A maximum speed of 4,500 min-1 or 1,000 min-1 greater than the highest speed occurring during a Type I Test cycle, whichever is the               lower;
               (b) The positive torque line (i.e. engine load with the transmission in  neutral);
               (c) A line joining the following engine operating points: the positive  torque line at 3,000 min-1 and a point on the maximum speed line               defined in (a) above with the engine's manifold vacuum at 13.33 kPa               lower than that at the positive torque line.
              3.3.3.3. Oxygen sensor deterioration
               This section shall mean that the deterioration of all oxygen sensors fitted and used for monitoring malfunctions of the catalytic converter according to the requirements of this annex shall be monitored.

              3.3.3.4. If active on the selected fuel, other emission control system components or systems, or emission related power train components or systems which are connected to a computer, the failure of which may result in tailpipe emissions exceeding the limits given in paragraph 3.3.2;
              3.3.3.5. Unless otherwise monitored, any other emission-related power-train component connected to a computer, including any relevant sensors to enable monitoring functions to be carried out, shall be monitored for circuit continuity;
              3.3.3.6. The electronic evaporative emission purge control shall, at a minimum, be monitored for circuit continuity.
              3.3.3.7. For direct injection positive ignition engines any malfunction, which may lead to emissions exceeding the particulate threshold limits provided for by paragraph 3.3.2. of this annex and which has to be monitored according to