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.
Code Enable Criteria
2001 Chevrolet Cavalier LS, 2.4 TSECTION Code Enable Criteria
- DTCs P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0171, P0201, P0202, P0203, P0204, P0300, P0301, P0302, P0303, P0304, P0335, P0440, P0442, P0446, P0506, P0507, P0601, P0602, or P1441 are not set.
- Fuel level is more than 10 percent.
- Engine Coolant Temperature (ECT) is more than 158°F (70°C).
- Engine speed is between 1600 RPM and 2450 RPM.
- Engine is operating in closed loop.
- Throttle Position (TP) angle is 9-18 percent.
- Evaporative emissions control system is commanded OPEN more than 36 percent.
- Purge learned memory is more than approximately 0.78.
- Diagnostic completes when 30 seconds accumulated time has been spent in specified conditions.
DTC sets when average O2S1 response times are more than 1119 milliseconds for rich to lean sweeps or 760 milliseconds for lean to rich sweeps. Or sum of rich to lean and lean to rich is more than 1235 milliseconds.
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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.