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Home >> Isuzu >> 1999 >> Trooper Part Time >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Trouble Code Identification >> DTC P0420: Low Catalyst Efficiency Bank 1, Or DTC P0430: Low Catalyst Efficiency Bank 2 >> Notes
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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.
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