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Testing the camshaft place sensor and/or diagnostic trouble code (DTC) P0341, on your 3.8L V6 fitted GM vehicle or mini-van, is simple test that deserve to be done using only a multimeter. No scan tool is necessary for this test! Now, since the electronic came sensor deserve to not it is in tested v a straightforward resistance check (Ohms), the test I"m gonna" show you is a dynamic test excellent by cranking the engine by hand.

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If you require to understand if this camshaft position sensor test applies to your details 3.8L GM vehicle, take a look in ~ the ‘Applies To:’ box on the right and also scroll with the arrowhead buttons come see every one of the applications.


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girlfriend can discover this tutorial in Spanish here: Cómo Probar: Sensor de la Posición del Árbol de Levas (GM 3.8L) (at: autotecnico-online.com).

Symptoms the A negative Cam Sensor

The one symptom you"re gonna" experience is the examine engine irradiate (CEL) shining nice and bright to let you recognize that there"s a problem.

You"ll additionally see one or number of of the following symptoms when the electronic came sensor fails:

Diagnostic trouble code: P0341: electronic came Sensor Circuit Performance.Poor gas mileage.Idle turbulent at begin up and also engine might stumble and stall.

The one point you need to keep in mind is that a video camer sensor failure will certainly not store your auto from starting.

Tools You"ll must Test The electronic came Sensor

Although it suck that you"re having a camer sensor issue with your 3.8L equipped vehicle, the cool point is that you don"t need any type of expensive devices to check it. Girlfriend don"t also need to use a scan tool.

Tools You"ll Need:

Multimeter.You have the right to use a digital multimeter or one analog multimeter although the digital one is the wanted one.JackFack stands1/2 inch ratchet wrench and the proper socket to rotate the crankshaft pulley bolt.

If possible, i recommend having actually a helper to assist you.

Where come Buy The camer Sensor and also Save

There"s a good chance the you have the right to buy the initial AC Delco - Delphi camshaft place sensor virtual for a entirety lot cheaper than somewhere local.

The following links will assist you compare shop for the camshaft place sensor and also the camshaft sensor interrupter:


How The video camer (CMP) Sensor Works

The camshaft position sensor, on your 3.8L V6 GM engine, is a three-wire hall Effect type sensor. So, for it to work, it"s gonna" require an exterior power supply and also a course to floor (for this power).

When you turn on the an essential and crank the engine:Power and Ground come from the ignition control module.Power is in the form of 10 Volts, and also the circuit (wire) the feeds this power also feeds the crankshaft place sensor.The camshaft position sensor likewise gets 5 come 7 Volts DC top top the camer position signal circuit. This voltage additionally comes indigenous the ignition control module (ICM).As the engine cranks:The camshaft position (CMP) sensor is activated by a magnet top top the camshaft equipment (this magnet is well-known as the camshaft position sensor interrupter).As the cam gear turns and also this magnet passes the camshaft position (CMP) sensor, the activates the camer sensor.Activation the the cam sensor (by the CMP interrupter) way that the sensor pulls under the voltage, supplied to the on the electronic came signal circuit, to 0 Volts.What this translates into is one On/Off signal the the ignition module (and the PCM) interpret into a camshaft place sensor signal.

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OK, as you might have currently deduced, from the information above, the camshaft place sensor"s wires perform not connect directly to the fuel injection computer. Instead, castle run directly to the ignition manage module (ICM) and the ICM then sends out the electronic came signal to the PCM ~ above circuit F (of the ignition regulate module"s connector).