Component Tests and General Diagnostics

Ignition Timing Control Inspection

1. Start the engine and run it at idle.
2. Warm up the engine to normal operating temperature.




3. Connect the SSTs (WDS or equivalent) to the DLC-2.
4. Select the PID/DATA MONITOR AND RECORD function on the WDS or equivalent display.
5. Select the SPARKED PID.
6. Verify that SPARKED PID is within the specification.

Specification: BTDC 4 degrees delta 16 degrees (100 degrees ± 6 degrees)

7. Increase the engine speed and verify that the SPARKED PID value is advanced.
- If it is not advanced, inspect the following.
- CKP sensor and related harness.
- MAF sensor and related harness.