Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSOLDSMOBILE1998EIGHTY-EIGHT LSREPAIR AND DIAGNOSISGENERAL INFORMATIONCOMPUTER RELEARN PROCEDURESCOMPUTER RELEARN PROCEDURESSATURNVEHICLE DRIVEABILITY COMPUTER RELEARN PROCEDURE
1998 Oldsmobile Eighty-Eight LS
Vehicle Driveability Computer Relearn Procedure
1998 Oldsmobile Eighty-Eight LSSECTION Vehicle Driveability Computer Relearn Procedure
- If vehicle battery was disconnected or Powertrain Control Module (PCM) was replaced, driving the vehicle will enable the PCM to perform a computer relearn procedure for obtaining proper driveability and engine idle. Until PCM has completed computer relearn procedure, driveability or idle may differ from standard vehicle operation. On A/T models, transaxle shift qualities must be relearned.
- On all models, start engine and warm engine to normal operating temperature. Drive vehicle at part throttle with moderate acceleration and with throttle at idle position.
- Repeat step 2) until normal driveability exists. Stop vehicle with engine idling. Apply parking brake. Place transaxle in Drive (A/T models) or Neutral (M/T models). Allow engine to idle for about 2 minutes until engine idle stabilizes.
- On A/T models, vehicle must be driven to relearn transaxle shift qualities. Operate vehicle so transaxle fluid temperature is at least 113°F (45°C). Drive vehicle at 1/3 throttle so transaxle performs a 1-2, 2-3 and 3-4 upshift. Repeat procedure so transaxle upshifts through all gears at least 10 times. On DOHC engine, go to next step. On SOHC engine, go to step 7).
- On DOHC engine, while coasting at 35 MPH, slowly accelerate to1/2 throttle to achieve a 4-3 downshift. Place gearshift in "D3" while coasting at 20 MPH, slowly accelerate at 3/4 throttle to achieve a 3-2 downshift.
- Repeat step 5) for 5 times. Vehicle driveability computer relearn procedure is now complete.
- On SOHC engine, while coasting at 40 MPH, slowly accelerate to1/2 throttle to achieve a 4-3 downshift. Place gearshift in "D3" while coasting at 30 MPH, slowly accelerate at 1/2 throttle to achieve a 3-2 downshift.
- Repeat step 7) for 5 times. Vehicle driveability computer relearn procedure is now complete.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.