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Check the idle speed, and adjust it if necessary (see IDLE SPEED INSPECTION ).
Connect the Honda PGM Tester to the Data Link Connector (DLC), and follow the tester's prompts in the "SCS" menu (see the Honda PGM Tester Operator's Manual).
Start the engine. Hold the engine at 3,000 RPM with no load (in Neutral) until the radiator fan comes on, then let it idle.
Remove the ignition coil cover, then connect the timing light to the No. 1 ignition coil wire.

Fig 1: Removing Ignition Coil Cover
Point the light toward the pointers (A) on the timing belt cover. Check the ignition timing under no load conditions: headlights, blower fan, rear window defogger, and air conditioner are not operating. If the ignition timing differs from the specification below, replace the ECM/PCM (see HOW TO REMOVE THE ECM/PCM FOR TESTING ).
Ignition Timing:
- M/T: 8° 2° BTDC (RED mark (B)) at idle in neutral
- A/T: 8° 2° BTDC (RED mark (B)) at idle in P or N
Fig 2: Pointing Light Toward Pointer On Timing Belt Cover
Turn the ignition switch OFF.
Disconnect the Honda PGM tester and timing light.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Ignition Timing Inspection