ok so last month i was getting blue smoke when under boost only with boost. so i replaced both turbo. still was getting smoke so again i replaced the turbos. no change so i replaced the pvc the valve seals. i have no oil in the inner piping. only other thing left is piston rings ? also getting knock sensor codes check the wires and sensor couldnt find anything wrong with them only comes on when i get on the car at highway speeds please help
Blue smoke !!!!
- Thread starter SUPRA721
- Start date
dude im pretty sure BLUE smoke means your running too rich. Black smoke usually means oil and White means coolant.
wow replaced the turbos TWICE! that must have been a pitty, get your self a wide band and see what A/F's your at idle and on the freeway. But blue smoke means oil is being burned, could be valve seals, valve guides or rings. do a compression test would be best before you do anything else. Are you loosing oil at all? black smoke is more likely to be fuel by the way.
haha ya, it could be a number of things realy, but those are the more serious issues. he could just need to change his oil or mabey he put to much oil, lol......realy though after all he has done to fix the problem, he needs to do a compression test before anything else.
Could be excessive oil remnant in the exhaust piping itself... I switched out my catback for a used Blitz a few months back, and there was quite a bit of oil in there, made my car smoke for a couple days. Went away after that though, so if it's continually smoking, you likely have different problems.
don't bump a thread, especially not in the same day. it pisses people off and makes them not want to help you.
Well first of all blue smoke is oil, not black (even tho its been established). Do you have the PCV system ran into the intake? Could be the turbo seals, valve stem seals, oil rings.. Take a pic of your setup