short of pulling everything out and seeing what brand it is, not that i'm aware of lol. maybe do some profiling? if you bought it from an older lady like i did, it's probably a safe bet that it wasn't done haha. maybe do a carfax on it. if you're worried about it, change your plugs and wires with your next oil change, that's not too expensive. for a lot of the sensors, i'd wait till it throws a code and acts funny. my car started jumping around when i was driving at like 120k, an O2 sensor and an MAF and problem solved
