Fuel Evaporation
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.
NOTE:
Ensure all vacuum line and EVAP system components are not damaged or missing. For diagnostic procedures, perform related DTC testing procedure. See DIAGNOSTIC TROUBLE CODE DEFINITIONS
in SELF-DIAGNOSTICS - 2.2L SONOMA & S10 PICKUP article.