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.
2001 Pontiac Firebird Formula, StandardFACTORY OEM SERVICE PROCEDURE
Learn Procedure
- Connect scan tool to data link connector located under driver's side of instrument panel, left of steering column. Apply parking brake and block drive wheels. Close hood if necessary. Place transmission in Park (A/T), or Neutral (M/T).
- Start engine and allow to idle until engine coolant temperature reaches 158°F (70°C). Turn off all accessories. Depress brake pedal for duration of the procedure.
- Use scan tool to enable crankshaft position system variation learn procedure. Slowly raise engine speed to 4000 RPM. Immediately release throttle when engine speed decreases. Turn ignition off for 15 seconds after learn procedure is completed successfully.
- If crankshaft position sensor variation learn procedure cannot be completed successfully, go to DTC P1336: CRANKSHAFT POSITION SENSOR VARIATION NOT LEARNED under DIAGNOSTIC TESTS for additional diagnostic information.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.