Ignition Timing Advance

Requirements
^ Ignition timing point adjustment OK.
^ Diagnostic Trouble Code (DTC) memory clear.
^ Engine cold.

NOTE: Some vehicles require Top Dead Center (TDC) sensor and adaptor VAG 1367/9. The ignition tester can be connected to these vehicles with the engine warm and without removing the distributor cap.

Procedure
- Remove splash shield from distributor cap.





- Connect VAG 1367 engine tester using VAG 1367/8 inductive pick up.
- Connect VAG 1551 Scan Tool (ST).
- Start engine and let run until Engine oil is at 80°C (176°F) minimum.
- Raise engine speed from idle to 2200 rpm.
- Slowly raise engine speed to slightly exceed 2200 rpm until the ignition timing point (adjustment value) is displayed.

^ Indicated on display:

49 States: 26 to 36° BTDC
California: 15 to 38° BTDC

- If ignition timing point does not change, perform electrical check, Test step 10 or 27.

NOTE: Use the VAG 1598 Test Box to perform these checks. If Test Box is not available, check Camshaft Position (CMP) sensor.