If you determine the camshaft position sensor is the problem, the good news is that replacement is usually very simple, if you can easily gain access to the sensor.
Many automotive supply stores will scan your vehicle’s onboard diagnostic system free of charge.
If so, an automotive computer scanner should be able to confirm whether or not the sensor is the problem. Often, these symptoms will be accompanied by the dreaded “check engine” light. When not replaced, the vehicle could experience hard starting (or failure to start), long crank time, misfire, decreased power, spark plug fouling, catalytic converter failure, poor fuel economy or intermittent shutdown … all fine reasons to replace the camshaft position sensor. When the sensor fails to do its job, the engine can’t function properly. The ECM uses this data to determine the timing of the ignition, as well as the timing of the fuel injection required by the engine. The CMP sensor identifies the position of the camshaft to the ignition control module (ICM), engine control module (ECM) or powertrain control module (PCM). If left unaddressed, the engine could eventually die while you’re driving. If the engine idles roughly, stalls frequently, has a drop in power, accelerates slowly, sputters or sounds like it has a nagging cough, your camshaft position (CMP) sensor could be failing. If your vehicle acts as if it has the flu, it could mean the camshaft position sensor needs to be replaced.
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