This check is used only to determine whether or not the idle CO/HC complies with regulations.
1. INSTALL CONDITIONS
(a) Air cleaner installed
(b) Air pipes and hoses of air induction system connected
(c) All accessories switched OFF
(d) All vacuum lines properly connected
(e) EFI system wiring connectors fully plugged
(f) Ignition timing check correctly
(g) Transmission in parking range
(h) Tachometer and CO/HC meter calibrated by hand
2. ACTIVATE INSPECTION MODE AND WARM UP ENGINE (See page IN-10)
3. RACE ENGINE AT 2,250 RPM FOR APPROX. 180 SECONDS
At the accelerator opening angle of 60% or more, the engine speed is controlled at 2,250 rpm.
4. INSERT CO/HC METER TESTING PROBE AT LEAST 40 cm (1.3 ft) INTO TAILPIPE DURING IDLING
5. IMMEDIATELY CHECK CO/HC CONCENTRATION AT IDLE AND/OR 2,250 RPM
Complete the measuring with 3 minutes. HINT:
When doing the 2 mode (idle and 2,250 rpm) test, these measurement order prescribed by the applicable local regulations.
6. STOP ENGINE
Was this article helpful?