1996 Ford Mustang Owner's Manual - Page 291

OBD II Drive Cycle The following steps must be run in the order shown. If steps 2 thru 9 are interrupted, repeat the preceding step. Any safe driving mode is acceptable between steps. Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws. The engine must be warmed up and at operating temperature before proceeding with the drive modes of the following OBD II Drive Cycle. 1. 2. 3. Start the engine. Drive or idle (in neutral) the vehicle for 4 minutes. Idle the vehicle in drive (neutral for manual transmissions) for 40 seconds. Accelerate the vehicle to 45 mph (72 km/h) (for manual transmissions up shift from 1st to 5th gear, but hold in second for at least 5 seconds) at 1/4 to 1/2 throttle for 10 seconds. Drive the vehicle with a steady throttle at 45 mph (72 km/h) (manual transmissions use 5th gear) for 30 seconds. Idle the vehicle in drive (neutral for manual transmissions) for 40 seconds. 4. 5. 297