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Re: Is the EGR valve necissary?
Well a friend of mine has a 90 chevy truck and his check engine light kept coming on so he pulled his codes and found out something was up with his EGR valve he checked it and the hose had been pulled off of it. He claims that he is getting better gas mileage now.
At this point I don't really care about mileage I have a 3cyl geo metro to drive when I want good mileage.
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