How do you test a camshaft position sensor?
Before you install the camshaft position sensor, make sure it works properly. To test it, connect the sensor to a multimeter and set it to the diode test function or a low-resistance setting. You then need to pass a magnet in front of the sensor.
How much does a bad camshaft sensor cost?
In this case, because of an inaccurate reading from a bad camshaft position sensor, more fuel than necessary is injected into the engine which causes your fuel economy to drop. To replace a camshaft position sensor, you can expect to pay anywhere from $120 to $300. Parts alone will run about $50 to $200.
Where is the position sensor on the crankshaft?
Generally, the sensor is located directly next to or near the area of the crankshaft. It is often situated near the top of the engine casing, which can be found near the intake or exhaust camshaft.
How does the Hall effect work on a camshaft sensor?
The Hall effect design has three wires going to it: reference, signal and ground. The PCM sends a reference DC voltage to the camshaft sensor and the sensor sends a return signal back to the PCM in accordance with camshaft position.
How do you replace a camshaft position sensor?
Step 2: Disconnect the negative battery cable. Disconnect the negative battery cable and set it aside. Step 3: Remove the sensor electrical connector. Remove the electrical connector by pushing down on the tab and sliding it off. Step 4: Remove the sensor mounting screw (s).
What is the camshaft sensor on a Chevy Silverado?
This article applies to the Chevrolet Silverado GMT800 (1996-2006). Your truck’s camshaft position sensor measures the rotational position of the camshaft, which then transmits that information to your engine control module.
How is the Camshaft Position Sensor ( CMP ) used?
The camshaft position sensor (CMP) is used by the powertrain control module (PCM) to determine the position of the camshaft in relation to the crankshaft.
How do you install a sensor on a car?
Push the sensor straight in and align the bolt flange with the mounting hole. Step 2: Install the sensor mounting screws. Install the sensor mounting screws and tighten them down using a wrench or ratchet and socket of of the appropriate size. Step 3: Reinstall the electrical connector. Step 4: Reinstall the negative battery cable.
Touch one of your meter probes to either one of the sensor wires and the other to the other wire. Check your meter display and compare your reading to your manual specifications. In most cases, you’ll see a fluctuating signal between 0.3 volts and 1 volt. If there’s no signal, you have a bad sensor.
How do you diagnose a camshaft problem?
1. Vehicle does not drive like it used to. If your vehicle idles roughly, stalls frequently, has a drop in engine power, stumbles frequently, has reduced gas mileage, or accelerates slowly, these are all signs your camshaft position sensor could be failing.
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.
How to check your ECM PCM computer sensor?
If the wiring checks out ok, plug the connector back into the TPS. Using a T-pin, carefully slide the T-pin into the signal wire connection, this is called back probing. Hook the Voltmeter to the T-pin and ground. At idle the reading should be between .5V and 1.0V. Slowly push the pedal down and watch the voltage.
How to test a PCM in a car?
How to Test a PCM. 1 Step 1: Visual Inspection. Now, before you start doing any surgery on your car, the first thing to do is to check for rust or a disconnected wire. 2 Step 2: Check Your Battery. 3 Step 3: Code Scanning. 4 Step 4: Inspect Wiring and Sensors. 5 Step 5: Try a Replacement.
What should I do if I suspect a faulty ECM?
Performing a visual inspection is something that anyone can do right from home and is one of the first tests you should perform if a faulty ECM is suspected as ECM plays a very serious role in your vehicle.