Grand Prix V6-191 3.1L VIN M SFI (1998)
21. Install and connect the fuel injector and Manifold Air Pressure (MAP) wiring harness.
22. Connect the ECT wiring harness.
23. Install the right (rear) valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement (Right Rear).
24. Install the left (front) valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement (Left Front).
25. Install the upper intake manifold. Refer to Intake Manifold Replacement (Upper).
26. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Starting and Charging.