Just purchased a 92 sidekick 2dr 4x4 8V. It does not run very good, starts and idles fine, drives down hiway up to 75mph ok, but it makes some noise like it is missing a sparkplug, there is a loud popping noise, an exploding noise all the time. Previous owner said he gave it a tune up (plugs,wires,cap,rotor, valve cover gasket,and he replaced dist. O-rings) but said it was low on compression in #2. I will get a guage and check this (yes I know how to do it properly). It just seems like it should run alot worse with low compression in 1 cylinder. It seems like it runs better from 65-75 than 25-30 Any idea whats going on--mixed up plug wires, timming belt jumped a tooth,? Also he had replaced cat. converter and rest of exhaust with a cherry bomb at end of header and no pipe after it. Doesn't it need backpressure from the cat to run properly? I'm going to give it a better, quieter exhaust, any suggestions on a cat, muffler? It also has a cold air intake with a k&n. There is NO smoke coming from exhaust.