Tailpipe Emissions Test

1.Start the engine. Hold the engine at 3,000 rpm with no load (in Park or neutral) unti the radiator fan comes on, then let it idle.

2.Connect a tachometer.

3.Check the idle speed.

4.Warm up and calibrate the CO meter according to the meter manufacturer¢s instructions.

5.Check idle CO with the headlights, heater blower, rear window defogger, cooling fan, and air conditioner off.

The CO meter should indicate 0.1 % maximum.