Ignition System Honda Odyssey II

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1. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on «IF THE MIL (MALFUNCTION INDICATOR LAMP) HAS COME ON»(ref-171136-S06283034362005011100000) ), and check for DTC's. If a DTC is present, diagnose and repair the cause before inspecting the ignition timing.
2. Start the engine. Hold the engine at 3,000 rpm with no load shift lever in Park or Neutral, until the radiator fan comes on, then let it idle.
3. Check the idle speed, and adjust it if necessary (see page 11-201).
4. Follow the tester's prompts to get the tester in the "SCS" mode (see the tester operator's manual).
5. Connect the timing light to the No. 1 ignition coil wire.
6. Aim the light toward the pointer (A) on the timing belt cover. Check the ignition timing under a no load conditions: headlights, blower fan, rear window defogger, and air conditioner are not operating. Ignition Timing: 10°+/-2°BTDC (RED mark (B)) during idling in Park or Neutral
7. If the ignition timing differs from the specification, check the cam timing, and the top dead center (TDC) and crankshaft position (CKP) sensors. If necessary, substitute a known-good powertrain control module (PCM) and recheck . See «HOW TO SUBSTITUTE THE PCM FOR TESTING PURPOSE»(ref-171136-S22224174352005011100000) .
8. Turn the ignition switch OFF.
9. Disconnect the HDS and the timing light.

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1. Remove the intake manifold cover (A) and ignition coil cover(s) (B).
2. Disconnect the ignition coil connectors, then remove the ignition coils.
3. Install the ignition coil in the reverse order of removal.

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1. Inspect the electrodes and ceramic insulator. Burned or worn electrodes may be caused by: Advanced ignition timing Loose spark plug Plug heat range too hot Insufficient cooling Fouled plug may be caused by: Retarded ignition timing Oil in combustion chamber Incorrect spark plug gap Plug heat range too cold Excessive idling/low speed running Clogged air cleaner element Deteriorated ignition coil
2. Do not adjust the gap of platinum tip plugs (A); replace the spark plug if the gap is out of specification. Electrode Gap: Standard (New): 1.0-1.1 mm (0.039-0.043 in.) Service Limit: 1.3 mm (0.05 in.)
3. Replace the plug at the specified interval, or if the center electrode is rounded (A). Use only the spark plugs listed. Spark Plugs: NGK: PZFR5F-11 DENSO: PKJ16CR-L11
4. Apply a small quantity of anti-seize compound to the plug threads, and screw the plugs into the cylinder head finger-tight. Then torque them to 18 N.m (1.8 kgf.m, 13 lbf.ft).