I just had all tune up parts, the timing belt, 02 sensor, valve cover gasket, water pump, fuel filter, water pump, air filter, belts, valve cover gasket, coolant sensor, air box thermostat, fuel pressure regulator, and mass airflow sensor replaced. The mechanic who did most of the work said he could do no more. My regular mechanic, who, meanwhile, returned from winter break, checked the car over and said it the problem was either with a cheap wire set (not cheap money wise, I'll say) or "the computer." At this point, $3,000 later, I am getting involved. Given the above symptoms, what computer could my regular mechanic be talking about, the Ignition Control Module or the Fuel Injection Computer? And which one of these is the same as the "ECU?" How many computers does the car have? The car also had an undesirable smell that was bothering me for a long time that has been overcome by the new, more noxious smell. My regular mechanic claims it is the catalytic converter, but I have no power issues. The other mechanic claims that it isn't the catalytic converter, as does the dealer. I mean, what is up? Someone on this site (Fitz) says to avoid platinum plugs. Which ones to get? I must replace them every two days right now so that the car will run. Which wires to get as well. Oh and which "Computer." Any expert and experienced help I could get at this point would be greatly appreciated.