P003D Code- 'A' Camshaft Profile Control Stuck On Bank 1

What Does Code P003D Mean

P0003 is a generic OBD-II code indicating an issue with the engine control module (ECM) reading signals from your fuel pressure regulator on your fuel injection rail mounted to your engine.

The ECM regulates your fuel pressure from your fuel pump going to your engine through this circuit and receives input on your actual fuel pressure, from the fuel pressure sensor. When the computer detects that fuel pressure it is not commanding to the fuel pump, it will set a Check Engine Light and this code. The code will affect fuel economy and possibly damage the engine.

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Possible symptoms

• Engine Light ON (or Service Engine Soon Warning Light)

Possible causes

• Faulty Camshaft Position Sensor
• Camshaft Position Sensor harness is open or shorted
• Camshaft Position Sensor circuit poor electrical connection

P003D OBDII Repair :

The sensors receive a 5 volt reference signal from the PCM. As pressure readings change, the sensor varies the voltage and the computer reads that to determine input. In the case of a broken wire, the sensor never sees the voltage and the computer assumes a major fault. So if you get this P003D code, first check to make sure you're getting a good 5 volt reference signal at the sensor.

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.