IDLE MIXTURE INSPECTION [ZJ, ZY]

1. Warm up the engine to normal operating temperature.

(1) Increase the engine speed to 2,500-3,000 rpm until the cooling fan starts running.

(2) When the cooling fan starts running, release the accelerator pedal and wait until the cooling fan stops running.

2. Verify that the idle speed and ignition timing are within the specification. (See IDLE SPEED INSPECTION [ZJ, ZY (WITHOUT WU-TWC)].) (See IDLE SPEED INSPECTION [ZJ, ZY (WITH WU-TWC)].) (See IGNITION TIMING INSPECTION [ZJ, ZY].)

3. Insert an exhaust gas analyzer into the tailpipe.

4. Verify that the CO and HC concentrations are within regulation.

Within the regulation