P003B Code- Turbocharger/Supercharger Boost Control 'B' Position Exceeded Learning Limit

What Does Code P003B Mean

P003B OBD2 specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.

engine code P003B	P003B fix	obd P003B	dtc P003B
obd code P003B	obd2 P003B	P003B car code	diagnostic code P003B
car code P003B	check engine code P003B	fehlercode P003B	P003B fiat
codigo P003B	codigo falla P003B	P003B kody błędów	codigo de falla P003B

Possible symptoms

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

Possible causes

• Faulty Turbocharger/Supercharger
• Turbocharger/Supercharger harness is open or shorted
• Turbocharger/Supercharger circuit poor electrical connection

P003B 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 P003B 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.