Hi i have a 2002 pajero sport 114000 miles sometimes when driving the engine light comes and it looses power,its still driveable and only smokey if i floor it,any suggestions thanks

Sounds like one of the injectors are defective by being stuck open and leaking large amounts of fuel into the engine cylinder(s).I've also in some cases experienced the fuel pressure regulator that has got a hole in the diaphragm and pulls fuel though the vacuum line or vacuum source.Thank you for your questions