Error P0020 on Livan все модели

Symptoms

• Rough engine idle
• Reduced engine power and response
• Increased fuel consumption
• Difficulty starting the engine
• Metallic knock at the top of the engine
• Check Engine Light Is On
• Unstable engine speed

Causes

• Bank 2 VVT solenoid malfunction
• Open or short circuit in VVT circuit wiring
• Clogged oil filter or VVT system channels
• Low oil pressure in the system
• Using unsuitable or contaminated engine oil
• Mechanical failure of the phase regulator
• Engine control unit (ECU) malfunction
• Damaged VVT solenoid connector
• Jamming of the phase change mechanism

How to Fix

1. Connect a diagnostic scanner and read all error codes
2. Check the level and condition of the engine oil, replace if necessary
3. Visually inspect the bank 2 VVT solenoid wiring and connectors
4. Measure the resistance of the VVT solenoid (should be 6-12 ohms)
5. Check the supply voltage at the solenoid (should be 12V)
6. Check the oil pressure in the engine lubrication system
7. Remove and clean VVT solenoid from oil deposits
8. If necessary, replace VVT solenoid bank 2
9. Check the operation of the camshaft phase regulator
10. Clear error codes and test drive to check
11. If the error reappears, check the ECU

FAQ

Error P0020 on other vehicles