Meaning

The engine control module has detected an electrical fault in the VVT actuator control circuit (oil control valve) for intake camshaft A on Bank 2 (the bank opposite cylinder 1). The control signal is absent, out of range, or the circuit exhibits a short circuit, open, or abnormal resistance.

Common causes

• Faulty or oil-deposit-clogged VVT solenoid (OCV) for Bank 2 intake
• Bank 2 VVT solenoid wiring open, shorted to ground, or shorted to power
• Corroded, loose, or damaged Bank 2 solenoid connector
• Blown fuse or faulty relay for the Bank 2 VVT circuit
• Defective ECM output driver for the Bank 2 VVT solenoid
• Supply voltage or ground fault in the Bank 2 VVT circuit

Symptoms

• Check-engine light (MIL) illuminated
• Rough idle, especially when cold
• Torque and power loss at mid-range RPM on Bank 2
• Increased fuel consumption
• Possible operating asymmetry between Bank 1 and Bank 2

Severity

What to do

1. Measure the Bank 2 intake VVT solenoid resistance and compare with specifications
2. Verify supply voltage and PWM signal at the Bank 2 solenoid connector
3. Check wiring for shorts to ground or power and circuit continuity
4. Clean or replace the Bank 2 intake VVT solenoid if clogged
5. Check engine oil level and quality

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