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Home >> Dodge and Ram >> 1985 >> Lancer ES, 2.2 D, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 2.2L EFI Tests W/Codes >> Testing & Diagnosis >> Trouble Code Descriptions >> Code 51
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Code 51

Problem is with oxygen feedback system. System is monitored during closed loop operation. Problem occurs if system stays lean for more than two minutes.

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