A diagnostic was run on this vehicle on January 23, 2013 because engine light was on. Said gas cap needed to be changed. Engine light came back on. Now they say the charcoal cannister needs to be changed. Why didnt it show up the first time?
 
Q&A
Ask Your Question2008 Toyota Corolla
Question: what happoens when the charcoal cannister needs to be changed and is not?
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