Possible Causes & Corrections:

WARNING: This page does not describe the selected car, but rather 35 other vehicles, including the 1992 Pontiac Trans Sport, 1992 Oldsmobile Silhouette, 1992 Oldsmobile Bravada, 1992 GMC Yukon, and 1992 GMC Vandura Special. However, it is still accessible from the selected car via links, so may be relevant.

Check fuel pump relay. Connect test light between fuel pump test terminal and ground or between fuel pump connector and ground. Turn ignition on. Light should illuminate for 2 seconds. If not, check fuel pump relay. See RELAYS in I - SYS/COMP TESTS article. For location of fuel pump test connector, see COMPONENT LOCATIONS in I - SYS/COMP TESTS article.
Check for poor fuel quality or water-contaminated fuel.
Ensure TPS does not stick or bind.
Check EGR valve operation.
Check for a leaking injector. Disconnect injector electrical connector at injector. Crank engine, and watch for fuel leakage.
Ensure coolant sensor circuit resistance or coolant sensor resistance is not too high. See SENSOR RANGE CHARTS article or CODE 15 chart in G - TESTS W/ CODES article.
Check ignition system for a worn distributor shaft, bare or shorted wires, incorrect pick-up coil resistance, loose ignition coil ground or moisture in distributor cap. Using Spark Tester (ST-125), check for adequate spark.
Check for shorts by misting plug wires with water.
Remove spark plugs. Check for wet plugs, cracks, improper gap, burned electrodes or heavy carbon deposits.
Check for correct fuel pressure at all speeds.
Check for a faulty in-tank fuel pump check valve. A faulty check valve allows fuel in lines to drain back to tank after engine is stopped.
Ensure correct PROM is installed in vehicle. Check with dealer for latest application information.
Check for restricted exhaust system.