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.
Test Description
2001 Chevrolet Cavalier LS, 2.4 TSECTION Test Description
WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers in the diagnostic procedures.
- 3 - This step verifies DTC P0446 is captured in freeze frame/failure record list. When multiple EVAP system DTCs are set, DTC stored in freeze frame/failure record is best diagnostic starting point.
- 28 - This step uses EVAP Purge/Seal function to test EVAP canister vent solenoid, pressure switching solenoid, and purge solenoid for correct operation. Using EVAP PURGE/SEAL function also tests for leaks by allowing the technician to seal the system and monitor FTP sensor.
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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.