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Home >> Mazda >> 1995 >> Protege L4-1.5L DOHC >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Ignition Timing >> Testing and Inspection
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Ignition Timing: Testing and Inspection

Preparation
1. Warm up the engine to normal operating temperature.
2. Shift the transaxle into Neutral (MTX) or P position (ATX).
3. Turn off all electrical loads.
^ Headlight
^ Blower motor
^ Rear window defroster
^ Power steering
4. Wait until the coolant fan stops.

Ignition Timing
1. Perform "Preparation". (Refer to above.)
2. Connect a tachometer to the data link connector terminal IG-.
3. Verify that the idle speed is within the specification.

Specification: 650-750 (700 ± 50) rpm [MTX]
700-800 (750 ± 50) rpm [ATX]

4. If not as specified, adjust the idle speed.




5. Connect the data link connector terminals TEN and GND by using a jumper wire.
6. Connect a timing light to the high-tension lead of the No.1 cylinder.




7. Verify that the timing mark (white) is within the specification.

Specification: BTDC 0 ± 1°

8. Verify that the timing mark (yellow) is within the specification.

Specification: BTDC 6-18°

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