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Isuzu
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1991
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Stylus L4-1588cc 1.6L DOHC (4XE1-W)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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Engine Control System
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DTC 51
DTC 51
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Check that all electrical connections are good.
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If, OK, clear memory and recheck ECM.
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If Code 51 re-appears, replace ECM.