EM-1 ENGINE MECHANICAL (2JZ-GTE) - CO/HC CO/HC INSPECTION EM3A7-02 HINT: This check is used only to determine whether or not the idle CO/ HC complies with regulations. 1. INITIAL CONDITIONS (a) Engine at normal operating temperature (b) Air cleaner installed (c) All pipes and hoses of air induction system connected (d) All accessories switched OFF (e) All vacuum lines properly connected HINT: All vacuum hoses for EGR system, etc. should be properly con- nected. (f) SFI system wiring connectors fully plugged (g) Ignition timing checked correctly (h) Transmission in neutral position (i) Tachometer and CO/HC meter calibrated by hand 2. START ENGINE 3. RACE ENGINE AT 2,500 RPM FOR APPROX. 180 SECONDS 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 2,500 RPM HINT: When performing the 2 mode (2,500 rpm and idle) test, follow the measurement order prescribed by the applicable local regu- lations. CO/HC Meter P11550 1997 SUPRA (RM502U) Author : Date : 1106