Ok here it goes , my engine is burning oil. but i do not know how, my plugs have no carbon or oil on them they are clean, with my cat hooked up it smokes real bad.. without it it doesnt....so i took it off...i put a piece of pipe in its place and its didnt smoke. for about two minutes.. then it slowly started... then it got worse.. and now it is back to the same.. whats going on? oh and i also found a dead plug.. could that have anything to do with it?

 

i guess the plug could have something to do with it. just replace all of them with ngk's and see if that helps.

 

It may be your OMP (oil metering pump) check it for leaks at the bottom front of your motor.