How do you remove the camshaft position sensor?
Remove the ignition coil, radio capacitor and ignition coil bracket. Disengage the wiring harness connector from the CMP sensor. NOTE: Prior to removing the camshaft position sensor, set the No. 1 cylinder to 10°After Top Dead Center (ATDC) of the compression stroke. Note the position of the sensor’s electrical connection.
How does the Camshaft Position Sensor ( CMP ) work?
Camshaft Position Sensor (CMP) The CMP sensor provides the camshaft position information, called the CMP signal, which is used by the Powertrain Control Module (PCM) for fuel synchronization. On 2 wire Sensor engines, the distributor stator or Camshaft Position (CMP) sensor is a single Hall effect magnetic switch.
What kind of Hall effect does a camshaft position sensor use?
The Hall-effect type uses an external power source to produce a digital signal (a “square wave,” on-or-off) and has three wires. Note: If you are new to all this, you should know that the camshaft position sensor is a different part from the crankshaft position sensor.
What causes the camshaft sensor to send the wrong signal?
A worn-out belt can prevent the Crankshaft – Camshaft Position Sensor from synchronizing, causing the sensor to send the wrong signal. So your car was running fine, but suddenly it’s, stalling, jerking, idling poorly, surging, or just running poorly.
How does a 3 wire cam sensor work?
The Camshaft Position Sensor, commonly abbreviated as CMP, gives camshaft position information by use of the Powertrain Control Module to enhance fuel synchronization. When using engines fitted with 3-wire sensors, the CMP variably hesitates the sensor. The highest mark on the camshaft projections prompts the CMP hesitating the sensor.
How is the camshaft position sensor connected to the ECU?
The wiring harness should be routed away from the high-tension cable to prevent interference. This procedure will determine if the Camshaft Position Sensor is able to send signal to the ECU. This is done by measuring the voltage across the signal and ground wires of the sensor.
How to fix a bad camshaft position sensor?
Apply a bit of engine oil to the o-ring of the new senor. Install the new camshaft position sensor and secure with the mounting bolt. Reconnect the wire connector to the sensor. Reconnect the negative battery terminal.
What happens when the camshaft timing pin leaves the sensor head?
When the Camshaft Timing pin comes close to the sensor head, the voltage at the signal wire drops to zero. It rises back to 12 volts when the pin leaves the sensor head. The Camshaft Position Sensor sends this signal to the PCM via the signal wire in the wiring harness (See Fig. 3).