P0067

Описание

Air Assisted Injector Control (N212), Short to Plus

Частые симптомы

• Air injection system control issues
• Check Engine Light
• Possible constant air injection
• Potential emission system problems
• Erratic air injection operation

Возможные причины

• Short to power in air injection control circuit
• Failed air assisted injector control valve stuck on
• ECU air injection driver circuit malfunction
• Air injection wiring harness short to 12V
• Aftermarket air system interference

Диагностика

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

Решения по ремонту

• Repair shorted air injection wiring to power
• Replace faulty air assisted injector control valve
• Remove interfering aftermarket air components
• Replace ECU if air injection driver failed
• Reset air injection system adaptations

Профилактика

• Professional installation of emission system upgrades
• Regular air injection wiring inspection
• Avoid splicing into factory air injection wiring