Ignition Timing: Testing and Inspection

ENGINE TUNE-UP [FS]
Engine Tune-up Preparation
1. Warm up the engine to normal operating temperature.
2. Shift the transaxle into neutral.
3. Turn off all electrical loads.
- Headlight switch
- Fan switch
- Rear window defroster switch
- A/C switch
4. Verify that the steering wheel is at straight ahead position.





5. Connect the SSTs (WDS or equivalent) to the - DLC-2.
6. Access RPM PID.
7. Wait until the electrical fan stops.

Ignition Timing Inspection
1. Perform "Engine Tune-up Preparation".
2. Verify that the RPM PID is within the specification.
- If not as specified, adjust the idle speed.
Specification 650 - 750 (700 ±50) rpm
3. Connect the timing light to the high-tension lead of the No.1 cylinder.
4. Verify that the timing mark (yellow) on the crankshaft pulley is within the specification.
- If not as specified, inspect following.
- CMP sensor
- CKP sensor
- TP sensor
- ECT sensor
- Neutral switch (MTX)
- Clutch switch (MTX)
- TR switch (ATX)
- If the devices are normal, replace the PCM.
Ignition timing BTDC 9° - 11° (10° ±1°) (TIMING MARK [YELLOW])





5. Connect the SST (System selector) to the DLC.
6. Set switch A to position 1.
7. Set the test switch to SELF TEST.
8. Verify that the timing mark (yellow) on the crankshaft pulley is within the specification.
- If not as specified, inspect the following.
- CMP sensor
- CKP sensor
- TP sensor
- ECT sensor
- Neutral switch (MTX)
- Clutch switch (MTX)
- TR switch (ATX)





- If the devices are normal, replace the PCM.
Specification BTDC 6° - 18°