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Ignition Timing Inspection: Inspection

  1. HDS DLC - Connect
  2. DTC - Check - Refer to: How to Troubleshoot the Fuel and Emissions Systems
  3. Engine - Warm Up
    1. Start the engine. Hold the engine speed at 3, 000 rpm with no load (in P or N) until the radiator fan comes on, then let it idle.
  4. Idle Speed - Check
  5. SCS - Short
    1. Turn the vehicle to the OFF (LOCK) mode.

    2. Jump the SCS line with the HDS, and wait more than 1 minute.

  6. Ignition Timing - Inspect
    GHH371591Courtesy of HONDA, U.S.A., INC.
    1. Start the engine.

    2. Connect the timing light to the No. 1 ignition coil harness.

    GHH371592Courtesy of HONDA, U.S.A., INC.
    3. Aim the light toward the pointer (A) on the timing belt lower cover. Check the ignition timing under a no load condition (headlights, blower fan, rear window defogger, and air conditioner are turned off).
    NOTE:

    The other pointer (B) is not used.

    Ignition Timing 

    4. If the ignition timing differs from the specification, check the camshaft timing . If the camshaft timing is OK, check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM , then recheck. If the system works properly, and the PCM was substituted, replace the original PCM .

    5. Disconnect the HDS and the timing light.

    5+/-2 deg.BTDC (RED mark (C)) at idle in P or N