Where is high purge flow fault in Chevy Cobalt?

Answer 1

The high purge flow fault in a Chevy Cobalt typically relates to the evaporative emissions (EVAP) system, specifically indicating an issue with the purge valve. This valve, which controls the flow of fuel vapors from the charcoal canister to the intake manifold, may be stuck open or malfunctioning, leading to excessive flow. To diagnose the issue, one should inspect the purge valve, associated hoses, and the charcoal canister for any leaks or blockages. Properly addressing this fault is crucial for emissions compliance and optimal engine performance.