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 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE
Code Enable Criteria
- Engine speed is 1000-2500 RPM.
- Throttle angle is more than 10 percent.
- Engine load is more than 40 percent.
- Engine Coolant Temperature (ECT) is more than 140°F (60°C).
- Maximum spark retard is less than 15 degrees.
- System voltage is more than 9 volts.
- Engine run time is more than 30 seconds.
- DTCs P0101, P0102, P0103, P0117, P0118, P0121, P0122, P0123, P0125, P0336, P0341, P0502, P0503, P1114, P01115, or P1121 are not set.
DTC sets when PCM detects a malfunction in integrated KS diagnostic circuitry whick will not allow proper diagnosis of KS system.
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.