Alero - 2.2L, Cavalier, Grand Am - 2.2L, Saturn - 1.9L & Sunfire

After replacing PCM or if program needs to be updated, refer to latest Techline information on PCM reprogramming. After reprogramming, perform CRANKSHAFT POSITION SENSOR SYSTEM VARIATION LEARN PROCEDURE , INSPECTION/MAINTENANCE COMPLETE SYSTEM SET PROCEDURE (see appropriate SELF-DIAGNOSTICS article) and THEFT DETERRENT SYSTEM COMPONENTS .