P065F

Symptoms

• Check Engine light comes on
• Reduced power in a certain rpm range
• Light engine vibration due to asymmetrical operation of the banks
• Increased fuel consumption
• The engine “thinks” at certain speeds

Causes

• Mechanical jamming of the intake manifold valve bank 2
• Soot contamination of bank valve mechanism 2
• Bank 2 valve actuator malfunction
• Vacuum leak in bank 2 valve drive system
• Deformation of the intake manifold bank 2

How to Fix

1. Activate bank 2 valve via scanner and check its response
2. Compare the behavior of bank 1 and bank 2 valves (both should behave the same)
3. Clean the valve of bank 2 with carb cleaner
4. Check Bank 2 Valve Actuator
5. If a mechanical failure is confirmed, replace the valve or manifold of bank 2

Related codes

Error P065F by Vehicle Brand