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Test NTC-15: Engine Stalls When Decelerating

  1. If battery cables were not recently disconnected, go to next step. If battery cables were recently disconnected, run engine until operating temperature is reached. Let engine idle for 10 minutes. Test is complete.
  2. Using scan tool, read DTCs. If no DTCs are present, go to next step. If any DTCs are present, perform appropriate diagnostic test. See DTC & TEST IDENTIFICATION  table under DIAGNOSTIC TROUBLE CODE DEFINITIONS.
  3. Turn ignition on. Using scan tool, read TP sensor voltage (sensor read test No. 07). With throttle closed, voltage should be 400 millivolts or more. With throttle fully open, voltage should be 3800 millivolts or less. If voltage is not as specified, go to next step. If voltage is as specified, check TP sensor circuits. See TEST NTC-45: THROTTLE POSITION (TP) SENSOR CIRCUIT .
  4. Check for defective ignition coil, spark plugs, spark plug cables. Check throttle body minimum airflow. See SYSTEM & COMPONENT TESTING - CARS - AVENGER & SEBRING COUPE article. Repair as necessary and recheck system operation.
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