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 MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 141 (ENGINE CONTROLS SELF-DIAGNOSTICS - 2.2L)DRIVE CYCLESINSPECTION/MAINTENANCE SYSTEM DTCS
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M
Inspection/Maintenance System DTCS
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Inspection/Maintenance System DTCS
WARNING: This page is about a different car, the 2003 GMC Sonoma and 2003 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
INSPECTION/MAINTENANCE SYSTEM DTCS
| System | DTCs Required To Set System Status To YES |
|---|---|
| Catalyst | P0420 |
| EVAP | P0440, P0442, P0446 & P1441 |
| Oxygen Sensor | P0133, P0140 & P1133 |
| Oxygen Sensor Heater | P0141 |
| Secondary AIR | P0410 |
Diagnose affected DTCs. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .
RENDER: 1.0x
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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.