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Engine Stall: Cruising

  1. At 1000-2000 RPM: Connect inductive timing light to spark plug wire and check for weakness in flash.
  2. Ensure spark plug wires are within allowable resistance values.
  3. Check for spark using spark tester.
  4. Enter self-diagnostic Mode II and monitor fuel metering system operation.
  5. Disconnect exhaust gas sensor and monitor change in driveability. If it improves, replace sensor. If not, go to 4.
  6. For Airflow Meter & Crank Angle Sensor: Enter self-diagnostic Mode III and retrieve codes. If vehicle will not start, crank engine before entering self-diagnostic Mode III.
  7. For Airflow Meter & Crank Angle Sensor: Enter self-diagnostic Mode V and monitor real-time diagnostic setting of fault codes. Perform appropriate code chart in TESTS W/CODES article.
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