What does the cam sensor read?

What does the cam sensor read?

The camshaft position sensor gathers information about the vehicle’s camshaft speed and sends it to the vehicle’s engine control module (ECM). The ECM uses this data to determine the timing of the ignition, as well as the timing of the fuel injection that the engine requires.

What do you use when establishing a camshaft position sensor indexing?

To establish camshaft sensor indexing on a vehicle with an adjustable sensor, all of the following are true, EXCEPT: attach a lab scope to the crankshaft position sensor signal wire. attach a lab scope to the camshaft position sensor signal wire. start the engine, observe the lab scope and compare the readings.

How does a camshaft sensor work?

The Camshaft Position Sensor detects camshaft rotation, and is mounted near the cylinder head so that the sensor is opposite to the timing rotor attached to the engine camshaft. The engine ECU detects the camshaft angle, and performs cylinder recognition based on the signals detected by the camshaft position sensor.

What is the difference between a crankshaft position sensor and a camshaft position sensor?

The Camshaft Position sensor is typically located in the cylinder head of the engine and has a cylindrical portion that inserts into the head. The Crankshaft Position sensor is normally located in the timing cover or on the side of the block with a cylindrical portion that inserts into the block.

What do the test results on the camshaft position sensor mean?

This is the correct and expected test result and lets you know that the camshaft position sensor is working correctly. This test result also lets you know that the camshaft position sensor is getting both power and Ground from your TrailBlazer or Envoy’s fuel injection computer.

How to test the cam sensor diagnostic trouble?

No scan tool required for the cam sensor test since a scan tool is not gonna’ be much help. Aslo a resistance test of the cam sensor will get you no-where since the camshaft position sensor is a Hall Effect type sensor that can not be Ohm-ed (resistance tested) with a multimeter.

Where does the cam sensor connect to the multimeter?

Hence it’s thru’ this wire that the Crank (or Cam Sensor) sends the Signal it produces; to the Fuel Injection Computer or Ignition Control Module. It’s on this wire that you’ll connect/attach the Red Lead of your Multimeter to test for the Signal. The Black Lead you’ll connect to ground.

Where is the camshaft position sensor located on a Dodge Dakota?

Before we start let me tell you that your 3.9L Dodge Dakota comes equipped with a camshaft position sensor and a crankshaft position sensor. The camshaft position sensor is located in the distributor and the crankshaft position sensor is bolted onto the transmission bell housing.

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 are the symptoms of a cam sensor problem?

Now, of course, it’s not gonna’ run right. Here are a couple of symptoms that your vehicle is probably experiencing: – P0340 Camshaft Position (CMP) Sensor Circuit. – P0341 Camshaft Position (CMP) Sensor Performance. Your GM mini-van, pick up, or SUV gas mileage is going thru’ the roof (in a negative manner-o’-speaking that is).

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.

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.