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Home >> Isuzu >> 1989 >> I-Mark LS >> Repair and Diagnosis >> Engine Performance >> System >> Tests W/Codes - Turbo >> Diagnostic Circuit Check >> Code 51 - Mem-Cal Failure Or Incorrect Mem-Cal

Code 51 - Mem-Cal Failure Or Incorrect Mem-Cal

Check that MEM-CAL is properly seated. If okay, replace MEM-CAL and recheck. If Code 51 reappears, replace ECM.

NOTE: Clear codes and confirm "closed loop" operation and no "CHECK ENGINE" light.
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