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.
Camshaft Position Sensor
The Camshaft Position (CMP) sensor detects camshaft angle at 180-degree intervals (4-cylinder) or 120-degree intervals (6-cylinder) and sends a signal to the PCM. The CMP sensor also detects cylinder No. 1 TDC (4-cylinder) or No. 1 and No. 4 TDC (6-cylinder) and sends a signal to the PCM. The CMP signal is used for fuel synchronization. For CMP sensor location, see CAMSHAFT POSITION SENSOR LOCATIONS table. On MPV, the CMP sensor pulses once per camshaft revolution.
| Application | Location | |
|---|---|---|
| B2300 | Top Rear Of Valve cover | |
| B3000 | Top Rear Of Engine | |
| B4000 | Front Of Engine, On Left Valve Cover | |
| Miata | Right Rear Of Cylinder Head | |
| Millenia | ||
| 2.3L | Front Of Left Cylinder Head | |
| 2.5L | Inside Distributor | |
| MPV | Front Of Left Cylinder Head | |
| Protege & Protege5 | Front Of Cylinder Head | |
| Tribute | ||
| 2.0L | Right Rear Of Engine | |
| 3.0L | Front Of Left Cylinder Head | |
| 626 | ||
| 2.0L | Front Of Cylinder Head | |
| 2.5L | Front Of Right Cylinder Head | |
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.