Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSACURA1998CL V6-3.0L SOHC (VTEC)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTUNE-UP AND ENGINE PERFORMANCE CHECKSIGNITION TIMINGTESTING AND INSPECTION
1998 Acura CL V6-3.0L SOHC (VTEC)
Ignition Timing: Testing and Inspection
1998 Acura CL V6-3.0L SOHC (VTEC)SECTION Testing and Inspection
Ignition Timing Inspection
1. Check the idle speed, and adjust it if necessary (see Fuel and emissions).
2. Remove the service check connector 2P (GRN/BLU and RED wires) from the connector holder located under the dash on the front passenger side, then connect the SCS service connector (T/N 07PAZ - 0010100) to it.
3. Start the engine. Hold the engine at 3,000 rpm with no load, shift lever in N or P until the radiator fan comes on, then let it idle.
4. Connect the timing light to the No.1 ignition wire, then point the light toward the pointer on the timing belt cover.
5. Check the ignition timing under a no load condition; headlights, blower fan, rear window defogger, and air conditioner are not operating. If the ignition timing differs from the specification below, replace the ECM or PCM.
Ignition Timing:
10° ± 2° BTDC (RED) during idling in N or P
6. Disconnect the SCS service connector from the service check connector.
1. Check the idle speed, and adjust it if necessary (see Fuel and emissions).
2. Remove the service check connector 2P (GRN/BLU and RED wires) from the connector holder located under the dash on the front passenger side, then connect the SCS service connector (T/N 07PAZ - 0010100) to it.
3. Start the engine. Hold the engine at 3,000 rpm with no load, shift lever in N or P until the radiator fan comes on, then let it idle.
4. Connect the timing light to the No.1 ignition wire, then point the light toward the pointer on the timing belt cover.
5. Check the ignition timing under a no load condition; headlights, blower fan, rear window defogger, and air conditioner are not operating. If the ignition timing differs from the specification below, replace the ECM or PCM.
Ignition Timing:
10° ± 2° BTDC (RED) during idling in N or P
6. Disconnect the SCS service connector from the service check connector.
RENDER: 1.0x
NO RELATED
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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.