You need a computer scan and system performance test to prove out P0442. Can many different things causing it. If you want us to check this out please call 313-562-7022 or schedule an appointment on line at StansGarage.net. I am sure we can diagnose it and give you the answer you need.
I have this car in the shop right now. They said there is no other issues with the EVAP line. It was the gas cap. Engine is in good health. I am going to drive it and see if the performance issue has been resolved.
Thank you for your reply.
I was looking for steps that can prevent me from spending tremendous amount of money and time. The above could have been a $15 fix.