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Home >> Jaguar >> 2000 >> XK8 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Trouble Code Identification >> DTC P0420: Catalyst Efficiency Below Threshold (Bank 1) >> DTC Description
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DTC Description

Catalyst efficiency below threshold Bank 1. This DTC is an OBD-II fault. Check Engine Indicator is activated after 2 consecutive trips with fault present.

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