Code 41: Cylinder Select Error: Notes

The ECM used for this engine can also be used for other engines. The difference is in the MEM-CAL. If a Code 41 sets, the incorrect MEM-CAL has been installed or MEM-CAL is faulty and must be replaced.

1. Turn ignition off and clear codes. Start engine and run for one minute. If code resets, check for faulty connection due to MEM-CAL not locked in place or incorrectly installed.
2. If code does not recur, code is intermittent. See DIAGNOSTIC AIDS.