P0016 2007 SCION XB - Crankshaft Position Camshaft Position Correlation Bank 1 Sensor 'A'
Check Timing Chain For Looseness/Jumped Tooth
Faulty Variable Valve Timing (VVT) sensor
Variable Valve Timing (VVT) sensor circuit is open or shorted
Variable Valve Timing (VVT) sensor poor electrical connection
Damaged Engine Control Module (ECM)
When is the code detected?
The Engine Control Module (ECM) set code P0016 when no receives no signal from the Variable Valve Timing (VVT) sensor.
Engine Light ON (or Service Engine Soon Warning Light)
Lack/Loss of power
Engine rough idle
P0016 2007 Scion Xb Description
The Engine Control Module (ECM
) controls the Oil Control Valve (OCV) to regulate the intake camshaft angle. As a result of the angle change, the engine timing is advance or retard. Optimizing engine timing will help the engine improve torque and fuel economy, and the exhaust emissions decrease under overall driving conditions. The Variable Valve Timing (VVT) system includes the Oil Control Valve (OCV) and VVT controller. The ECM
detects the actual intake valve timing using signals from the camshaft and crankshaft position sensors, and performs feedback control.