What is your question?
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What is your question?
I had a code reading of P0440 or P440 which states that the emission system has a problem. What are some of the problems that can cause the e/systems to malfunction? email: h1983m@yahoo.com
1 Reply
a leak in the system. a valve stuck open or closed or is defective. there are all kinds of problems that can result in evap codes. a shop can use a scan tool and a smoke machine to track down your failure. Roy