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Ignition System: Mem-Cal: Installation

  1. Carefully align MEM-CAL pins with ECM pin holes. DO NOT  press in middle of MEM-CAL. Push downward evenly on ends of MEM-CAL until retaining clips on ends of MEM-CAL snap into place.
  2. Install ECM. Reconnect negative battery cable. Turn ignition on and ground ALDL connector. Code 12 should flash at least 4 times (if no other codes are present). If Code(s) 42, 43, 51 or 52 is present, or if CHECK ENGINE light stays on constantly with code(s) present, MEM-CAL is not fully seated or is defective. If it is necessary to remove MEM-CAL, follow previous removal instructions.
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