P002C

Описание

Exhaust (B) Cam Profile Control bank 1, Signal too High

Частые симптомы

• Stuck in high exhaust cam profile
• Possible excessive exhaust valve lift
• Check Engine Light
• Poor low-RPM exhaust performance
• Increased exhaust noise

Возможные причины

• Short to power in exhaust cam profile circuit
• Failed exhaust cam profile solenoid stuck on
• ECU exhaust driver circuit malfunction
• Wiring harness short to 12V on exhaust side
• Aftermarket exhaust system interference

Диагностика

1. 1. Test exhaust circuit for shorts to power
2. 2. Check exhaust cam profile solenoid mechanical operation
3. 3. Inspect exhaust wiring for damage
4. 4. Test ECU exhaust output signals
5. 5. Check for aftermarket exhaust modifications

Решения по ремонту

• Repair shorted wiring to power on exhaust side
• Replace faulty exhaust cam profile solenoid
• Remove interfering aftermarket exhaust components
• Replace ECU if exhaust driver circuit failed
• Reset exhaust valve train adaptations

Профилактика

• Professional installation of exhaust upgrades
• Regular exhaust wiring inspection
• Avoid splicing into factory exhaust profile wiring