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HOMESERVICE MANUALSHONDA2008CIVIC SI, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 88 (FUEL SYSTEM & EMISSIONS SYSTEM (R18A1 ENGINE))GENERAL TROUBLESHOOTING INFORMATIONCKP PATTERN CLEAR/CKP PATTERN LEARNLEARN PROCEDURE (WITHOUT THE HDS)
2008 Honda Civic Si, 4D Sedan

Learn Procedure (without the HDS)

2008 Honda Civic Si, 4D SedanSECTION Learn Procedure (without the HDS)
WARNING: This page is about a different variant/trim than selected.
  1. Start the engine. Hold the engine speed at 3,000 RPM without load (AT/in P or N, M/T in neutral) until the radiator fan comes on.
  2. Test-drive the vehicle on a level road: Decelerate (with the throttle fully closed) from an engine speed of 2,500 RPM down to 1,000 RPM with the A/T in 2, or M/T in 1st.
  3. Test-drive the vehicle on a level road: Decelerate (with the throttle fully closed) from an engine speed of 5,000 RPM down to 3,000 RPM with the A/T in 2, or M/T in 1st.
  4. Repeat step  2 and  3 several times.
  5. Turn the ignition switch to LOCK (0).
  6. Turn the ignition switch to ON (II), and wait 30 seconds.
RENDER: 1.0x

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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.