P0077

Описание

Intake Valve Control Solenoid, Signal too High (Bank-1)

Частые симптомы

• Possible intake system control issues
• Check Engine Light
• Erratic intake system operation
• Possible intake system protection activation
• Reduced engine efficiency

Возможные причины

• Short to power in intake valve control circuit
• Failed intake valve control solenoid stuck on
• ECU driver circuit malfunction
• Wiring harness short to 12V
• Aftermarket intake system interference

Диагностика

1. 1. Test intake circuit for shorts to power
2. 2. Check intake valve control solenoid mechanical operation
3. 3. Inspect wiring harness for damage
4. 4. Test ECU intake control output
5. 5. Check for aftermarket intake components

Решения по ремонту

• Repair shorted intake control wiring to power
• Replace faulty intake valve control solenoid
• Remove interfering aftermarket components
• Replace ECU if driver circuit failed
• Reset intake system adaptations

Профилактика

• Professional installation of intake upgrades
• Regular intake wiring inspection
• Avoid splicing into factory intake control wiring