P0066

Описание

Air Assisted Injector Control (N212), Short to Ground

Частые симптомы

• Air injection system malfunction
• Check Engine Light
• Possible emission issues during warm-up
• Reduced cold engine efficiency
• Potential cold start problems

Возможные причины

• Short to ground in air injection control circuit
• Failed air assisted injector control valve
• Low system voltage to air injection
• Corroded ground connections in air system
• ECU air injection driver circuit issue

Диагностика

1. 1. Check battery and charging system voltage
2. 2. Test for shorts to ground in air injection circuit
3. 3. Inspect air injection control valve operation
4. 4. Check air system ground connections
5. 5. Test ECU air injection control output

Решения по ремонту

• Repair shorted air injection wiring to ground
• Replace faulty air assisted injector control valve
• Charge or replace battery if needed
• Clean and tighten air system grounds
• Replace ECU if air injection driver failed

Профилактика

• Maintain good electrical system health
• Protect air injection wiring from moisture
• Regular emission system electrical checks