Damaged or dirty reluctor ring on the camshaft.*In many cases there may be no noticeable issues with your vehicle What Is The Cause Of P0340? The vehicle will not start – may be difficult to start.When the trouble code P0340 is set, the ignition spark and fuel injector timing fails due to the engine not knowing when to fire these components. The ECM uses this information to control ignition spark and fuel injector timing. It works hand in hand with the reluctor ring that creates a square wave voltage signal that the ECM interprets as the crankshaft position. The camshaft position sensor located in the internal combustion engine monitors the position and rotational speed of the camshaft. Code P0340 DefinitionĬamshaft Position Sensor Circuit Malfunction What Does P0340 Mean?
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