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Lexus
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2006
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RX 400h AWD
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Repair and Diagnosis
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Engine Performance
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Engine Control System (3MZ-FE)
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SFI System
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DTC P0420 Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430 Catalyst System Efficiency Below Threshold (Bank 2)
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Typical Malfunction Thresholds
Typical Malfunction Thresholds
TYPICAL MALFUNCTION THRESHOLDS CHART
Oxygen storage capacity of catalyst
15 V or more (varies with A/F sensor locus length)