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 MANUALSACURA2008RLREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISPGM-FI SYSTEMCMP SENSOR REPLACEMENT

2008 Acura RL

CMP Sensor Replacement

2008 Acura RLSECTION CMP Sensor Replacement

Set the No. 1 piston at top dead center (see TIMING BELT REMOVAL ).
Remove the upper covers from the engine (see step 10 under TIMING BELT REMOVAL ).
To hold the timing belt adjuster in its current position, thread in the battery clamp bolt hand-tight (see step 14 under TIMING BELT REMOVAL ).
Loosen the idler pulley bolt about five or six turns, then remove the timing belt from the front camshaft pulley (see step 16 under TIMING BELT REMOVAL ).
Remove the front camshaft pulley (A).

Fig 1: Front Camshaft Pulley, CMP Sensor Connector And CMP Sensor With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect the CMP sensor connector (B), then remove the back cover (C).
Remove the CMP sensor (A) from the back cover.

Fig 2: CMP Sensor With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the parts in the reverse order of removal. Reinstall the timing belt (see TIMING BELT INSTALLATION ) and other removed parts.
Do the CKP pattern clear/CKP pattern learn procedure (see CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN ).

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.