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Isuzu
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1999
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Trooper Part Time
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Self-Diagnostics
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Diagnostic Trouble Code Identification
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DTC P0420: Low Catalyst Efficiency Bank 1, Or DTC P0430: Low Catalyst Efficiency Bank 2
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Notes
DTC P0420: Low Catalyst Efficiency Bank 1, Or DTC P0430: Low Catalyst Efficiency Bank 2: Notes
NOTE:
Bank 1 refers to right cylinder bank. Bank 2 refers to left cylinder bank.