Hey hopfuly some has had same prob,95 vortex had fuel odor, missing prob,changed spyder found leak, plugs,distributor,cap rotor,wires,non oem than switched to ac/delco parts,my problem is put back together and still have missing no5 at idle but seems to clear after partly throttle opening,have changed egr cleaned carbon,changed maf,iac,checked compression around 90 to lowas 70 on no5,165000 miles, but sometimes its clears up but here lately still missing at idle po305 code,anybody got any other ideas, before havto break into engine, lower intake problems with these models. any help would be appreicated thanks irish7317