Ignition Timing: Testing and Inspection
Ignition Timing InspectionNOTE: Before beginning ignition timing inspection, make sure there are no DTC's present in the engine control module (ECM)/power control module (PCM).
1. 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.
2. Check the idle speed, and adjust it if necessary.
3. Connect the PGM tester to the data link connector (16P), and follow the tester's prompts in the "SCS" menu (see the Honda PGM Tester Operator's Manual).
4. Connect the timing light to the No. 1 ignition coil wire.
5. Point the light toward the pointer (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.
Ignition Timing:
M/T: 10 ° ± 2 ° BTDC (RED mark (B)) at idle in Neutral
A/T: 10 ° ± 2 ° BTDC (RED mark (B)) at idle in [P] or [N]
6. Disconnect the PGM tester and the timing light.