P0420Toyota CamryJahre: 1996 - 2026
Catalyst System Efficiency Below Threshold (Bank 1)
Was bedeutet das?
Code P0420 indicates the catalytic converter on Bank 1 is not operating at maximum efficiency. The PCM monitors converter efficiency by comparing the upstream and downstream oxygen sensor signals. When the downstream sensor mimics the upstream sensor's switching pattern, it means the catalyst is no longer cleaning exhaust gases effectively.
Haftungsausschluss: Dieser Diagnosecode ist Teil des OBD2-Standards und gilt für Toyota Camry Modelle von 1996 bis 2026. Bitte beachten Sie jedoch, dass dies von der genauen Motorkonfiguration abhängt.
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Häufige Ursachen
Faulty sensor or damaged wiring
Vacuum or exhaust leak
Internal component wear and tear
Zu beachtende Symptome
- Check Engine Light is illuminated
- Decreased engine performance
- Noticeable drop in fuel economy
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$100 - $450
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DIY-Schwierigkeitsgrad
Moderate