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Evap System 03 Impala
Does anybody know how the EVAP System works on a 03 Impala, or what the major components are? I read the thread on EVAP solenoid and I was able to test the solenoid on my car and it seems to work (open and closes with 12volts). The reason I ask this question is because I was trying to get my car inspected and the EVAP system is failing or not passable. What does the computer test on the car to determine if the EVAP System is passable or not?
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