Index Chrysler Chrysler Town & Country/Voyager, Dodge Caravan, Plymouth Voyager - service repair manual 1992 year
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Stop All Tests THROTTLE BODY MINIMUM AIR FLOW CHECK (1) Connect Diagnostic Readout Box II (DRB II). door vacuum hose. (3) Warm engine in Park or Neutral until the cooling fan has cycled on and off at least once. (4) Hook-up timing check device and tachometer. set basic timing to 12°BTDC 6 2°BTDC. (6) Shut off engine. Reconnect coolant temperature sensor. (7) Disconnect the PCV valve hose from the intake manifold nipple. (8) Attach Air Metering Fitting #6457 (Fig. 23) to the intake manifold PCV nipple. (9) Restart the engine, allow engine to idle for at least one minute. (10) Using the DRBII, Access Min Airflow Idle Spd in the sensor read test mode. (11) The following will then occur: • AIS motor will fully close. • Idle spark advance will become fixed. • Idle fuel will be provided at a set value. • Engine RPM will be displayed on Diagnostic Read- (12) Check idle RPM with tachometer. If idle RPM is within the specifications listed below, then the throttle If idle RPM is not within specification replace throttle body. (13) Shut off engine. manifold PCV nipple. Reinstall the PCV valve hose. (15) Remove DRBII. air door vacuum hose. (17) Disconnect timing check device and tachometer. IGNITION TIMING PROCEDURE Refer to Group 8D Ignition System 60-WAY ENGINE CONTROLLER WIRING CONNEC- Refer to the engine controller wiring connector dia- grams (Fig. 24) for information regarding wire colors Fig. 23 Air Metering Fitting IDLE SPECIFICATIONS . FUEL SYSTEM 14 - 43 |