I have a 99 ram that has been giving me a little trouble with a misfire. It only does it for 5 minutes or so when I first start it on a cold start. It has new plugs, Mopar wires, cap, rotor, plenum plate and intake gasket, thermostat, etc., etc. The first time I had an issue I found a cracked plug on #8, now I had a misfire on #7. I haven't checked compression yet. I do think I may have an injector issue, 2-3 times I've started it and have smelled gas bad for about 10 seconds. Also has a new map on it. I'd like to find out whats wrong and repair it without throwing a bunch of new parts at it.