What happens when the camshaft position sensor is inoperative?
The change in the magnetic field cause the voltage from the sensor to change. When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals. Need more information on how to fix the P0340 TOYOTA code?
What does the p0340 camshaft position sensor do?
P0340 Description. The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. This information is used by the Engine Control Module(ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder.
Where are the sensors located on a crankshaft?
On most applications, the camshaft position sensor(s) are located in or on the valve cover to place the sensor(s) in close proximity with a reluctor ring or protrusion on the camshaft(s) that interrupt(s) the sensors’ magnetic field to produce a signal. Crankshaft position sensors can be located on…
How long does it take to diagnose Toyota camshaft sensor code?
Sometimes and in some models, low battery voltage or a weak starter can trigger a Camshaft Position Sensor code. The cost to diagnose the P0340 TOYOTA code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.
Why is my camshaft position sensor not working?
Many drivers immediately replace the camshaft position sensor once they receive the P0340 code. But as you can see by looking at the list of potential causes above, there are several other reasons that could hamper the device’s signal. Wiring issues feature prominently in many incorrect diagnoses of the P0340 trouble code.
What does the p0340 code on the camshaft position sensor mean?
Disrupting the signal from the camshaft position sensor throws off the engine’s precise timing and can cause performance problems, such as misfires and sub-optimal fuel-to-air mixtures. The PCM will log a P0340 code and activate the Check Engine Light to warn the driver that something went wrong. The P0340 code is a generic powertrain code.
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.
How to check the crankshaft and camshaft position?
Attach the black multimeter cable to battery ground. Cranking the engine, you should see the voltage reading on the meter fluctuate. Note that a damaged or improperly aligned tone ring will also prevent proper sensor operation. When in doubt, remove the cam gear and the crankshaft harmonic balancer and inspect the tone rings.