INSPECTION
Note. This check is used only to determine whether or not the idle CO/HC complies with regulations.
- Install Conditions Air cleaner installed Air pipes and hoses of air induction system connected All accessories switched OFF All vacuum lines properly connected EFI system wiring connectors fully plugged Ignition timing check correctly Transmission in parking range Tachometer and CO/HC meter calibrated by hand
- Activate Inspection Mode And Warm Up Engine. See «PRECAUTION»(ref-182312-S26751553522005080800000) .
- Race Engine At 2,250 RPM For Approx. 180 Seconds
- Insert CO/HC Meter Testing Probe At Least 40 CM (1.3 ft) Into Tailpipe During Idling
- Immediately Check CO/HC Concentration At Idle And/or 2,250 RPM Complete the measuring with 3 minutes.
- Stop Engine
If the CO/HC concentration does not comply with regulations, troubleshoot in the order given below.
- Check heated oxygen sensor operation. See «DIAGNOSTIC TESTS»(ref-97394-S23265950982001050400000).
- (Scheme 74)for possible causes, and then inspect and correct the applicable causes if necessary.
