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2021
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RDX Base
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Engine Performance
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Engine Control System - DTC Diagnostics (P0010 - P0299)
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DTC Troubleshooting
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DTC P0171, P2187
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Overview
DTC P0171, P2187: Overview
If long term fuel trim (LTFT) is higher than a specified value, the PCM determines an abnormality and stores the DTC.