hi I'm Danny and I really need some help. I purchased a 2003 ranger xlt with 127,000 miles. this vehicle was used as a service truck for a small company. The problem I'm having is it seems like the truck has some type of limiter on the engine, it will not rev over 3000 rpm in park. when driving I have no passing ability and the engine just stutters and bucks. I have checked and changed the plugs and wires, installed a new coil pack, ohmed out the injectors, the fuel pressure is good. I have no CEL and no codes. Any Ideas?
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