Section 135 (Engine Controls - Basic Testing - 7.4L)
WARNING: This page does not describe the selected car, but rather 19 other vehicles, including the 1996 Chevrolet Chevy Van, 1995 GMC Vandura Special, 1995 GMC Vandura, 1995 GMC Suburban, and 1995 GMC Rally Camper Special. However, it is still accessible from the selected car via links, so may be relevant.