Purge Valve Replacement: Why It’s Important + Costs Involved
RepairSmith
MARCH 28, 2024
The ECU (Electronic Control Unit) opens and closes the canister purge valve to control the vapor flow. The ECU can fail for several reasons, including water damage, corrupt software, and bad sensors. This system traps and reroutes fuel vapor to the engine, reducing harmful emissions and improving fuel efficiency. But that’s not all.
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