[saunders80]

hey if the timing belt hasn't been messed with... having the wrong spark plug will cause random misfire and throw odd codes.. i had the same problem.. many many threads on which plugs you need.. the loss of power sounds the same as when my catylastic converters went out.. (or burnt up because of wrong plugs making the motor misfire and run to rich) i betting the plugs and converters are your problem.. hope not for you sake atleast the converters anyway..