i have an infinti I-30 year 2000 this car has had some problems and no one can figure out what is wrong with it
it has had the starter, cadillac convter, upper and lower gaskets (intake) and both crank sensors replaced. this was all done on the advice of 3 different car mecanics
the car will not go over 40 mph and it has a very hardtime going up hills and it has to warm up for at least 15 mins. or it will not go at all and it cuts off.
so if any one has any hints please reply i am hoping someone out there has had this problem before and can tell me what it is

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