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86 Base, Standard Trans
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Repair and Diagnosis
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Engine Performance
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Engine Control System - Diagnostic Codes (3 Of 6)
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SFI System
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DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) [06/2016 - 07/2018]
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Typical Malfunction Thresholds
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Typical Malfunction Thresholds
Diagnostic value*
More than 10
*: Refer to Monitor Description