The camshaft position sensor (CMP) is a variable reluctance sensor that is triggered by a high point on the left-hand exhaust camshaft sprocket. The CMP sends a signal relating camshaft position back to the PCM and that signal is used by the PCM to check engine timing.
Removal & Installation
- Disconnect the negative battery cable.
- Detach the electrical connector for the CMP sensor.
- Remove the CMP sensor retaining bolt(s) and remove the CMP sensor from the front cover.
- Installation is the reverse of removal.
- Check voltage between the camshaft position sensor terminals PWR GND and CID.
- With engine running, voltage should be greater than 0.1 volt AC and vary with engine speed.
- If voltage is not within specification, check for proper voltage at the VPWR terminal.
- If VPWR voltage is greater than 10.5 volts, sensor may be faulty.