91 Grand prix. Trouble code 41

1991 ALL OTHER MAKES ALL OTHER MODELS
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SVS_WTF
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Hey guy's this trouble code i have for my grand prix says it's code 41 looked it up and it says "cylinder error" So what does that mean exactly? always a great car 112,000 mi. 2.3 Engine overhead cam 1 owner very well taken care of So is it garbage now?heheh no lack in proformance or anything at all really just the check engine light..Thx..
Feb 6, 2006 at 10:22 AM
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MVANNESSJR
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Ehhhhmmmm...

41 Cylinder Select Error (Faulty or Incorrect Mem-Cal)

Mem-Cal is the PROM that controls the PCM/ECM.
Trouble Code 41 indicates an incorrect MEM-CAL has been installed or it is faulty and it must be replaced.

Possible causes include:
1) Faulty connection due to MEM-CAL not locked in place.
2) Incorrect MEM-CAL installed.
3) Faulty MEM-CAL
Feb 7, 2006 at 3:15 AM