Got "free" wagon. Need it to pass emissions. Did wanna be tune-up (oil change, new air filter, plugs & wires, fuel filter, radiator flush'n'fill). Runs and idles fine while just sitting there, but-with even pressure applied to pedal-rpms raise and lower dramatically. I can really rev it and keep them high at the same level, but at lower rpms they vary greatly. Any ideas?
It is probably cheaper to get the car inspected. It is cheaper in the long run to fix only what needs to be fixed. When you get it inspected, you will find out exactly what needs to be fixed. This is a lot cheaper and easier than guessing what needs to be fixed, fixing it and finding out later that other things need to be fixed.
Plus, I think some states have limits on what you have to spend to pass emissions. If your state is one of the states, anything you spend before inspection does go towards that limit.
So the best thing to do is get it inspected and target your spending towards what is broken.
Jeff
I'd start by seeing if it's throwing any codes.
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