The PCM is mounted ín the Engine compartment-- On the Firewall - Near the Coolant Reservoir. The screws are for the Cover (2) and only Need to be backed out about a - 1\4. Of an Inch-- They are TORX fasteners. The PCM has 3 large Rectangular Connectors going to it! And this May or May NOT fix your problem. Try it and see. Many things can Cause stalling -- Good luck. - JB