Acura RSX How-to: Troubleshoot the Camshaft Position Sensor
The camshaft position sensor will cause an assortment of problems to your Acura RSX when it starts to fail. The performance of your ride may experience some issues, or worse, the car won't start entirely due to a no-spark activity from the ignition. Now, you may ask, "How can this be when the function of the camshaft position sensor is to monitor the position and the speed of the camshaft in an internal combustion engine? It doesn't work directly with other components, does it?" But with a faulty sensor, the strokes of your engine will fail to be synchronized, hence, making the aforementioned engine issues possible. You can avoid this, though, by following some of the troubleshooting tips discussed below:
The Check Engine light comes up.
Since the camshaft position sensor is part of your vehicle's engine control unit, it is only expected that once the sensor begins to fail, the Check Engine light will intermittently blink to alert you of the situation. Check the most obvious causes of engine failure, if nothing stands out, then it is most probably the camshaft position sensor that causes the Check Engine light to trip.
The car stalls when you step on the accelerator pedal.
This is, again, because the strokes of the pistons are not synchronized. The camshaft position sensor relies on a slotted wheel attached to the camshaft-and by extension, the positions of the pistons-that when it is misaligned even at a very minimal angle, it will start to produce a mish-mash of communication data. Your car's brain is confused when and when not to work harder because the camshaft position sensor is giving mixed signals.
The car won't start at all.
If your car fails to start even after several attempts of cranking it to life, then, the camshaft position sensor is indeed in very bad shape. You should already have a professional take a look at this, since, attempting to troubleshoot this on your own will only increase the chances of other parts getting damaged.