2000 Pontiac Grand Am GT Coupe 3.4 V6 misfire with high rpm an low mph

What is your question?

My car will shake when stopped an when trying to speed up quickly the rpm will shoot up while the mph remain low. The service engine soon light is on solid when first starting to drive but begins to blink an go solid through out a whole trip. The service engine soon light remains solid if I slowly speed up to the point I can’t make it to the speed limit in time. It is also starting to eat gas and oil like crazy but when checked by a mechanic there where no leaks besides my exhaust that I have had fixed. When I toke it to get my codes read AutoZone said my computer is not hooked up. I have no clue what else would cause this problem. Is there anything else I should fix to try and stop the problem?

What makes this problem better or worse?

It’s better when I speed up very slowly

How long has your 2000 Pontiac Grand Am had this problem?

A few days