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Home >> Jeep >> 1996 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Controls - Tests W/Codes - 2.2L) >> Self-Diagnostic Tests >> Test NTC-14A - Checking Minimum Idle Airflow

Test NTC-14A - Checking Minimum Idle Airflow

WARNING: This page is about a different car, the 1994 Plymouth Sundance and 1994 Dodge Shadow. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition off. Remove air cleaner assembly. Plug heated air door vacuum hose. Disconnect PCV valve hose from vacuum nipple. Install Vacuum Fitting (6457) to intake manifold PCV nipple. Start engine. Allow engine to reach normal operating temperature.
  2. If vehicle has less than 1000 miles on odometer, go to next step. If vehicle has more than 1000 miles on odometer, using DRB, actuate minimum airflow. Engine speed should be 1100-1300 RPM. If engine speed is within specification, minimum airflow is normal. Test is complete. If engine speed is not within specification, replace throttle body. Perform TEST VER-2.
  3. Using DRB, actuate minimum airflow. Engine speed should be 700-1300 RPM. If engine speed is within specification, minimum airflow is normal. Test is complete. If engine speed is not within specification, replace throttle body. Perform TEST VER-2  .
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