Intermittent misfiring on rb25det
My r33 skyline has recently started intermittently misfiring on idle and while driving.
Spark plugs are new, new yellow jacket coil packs, replaced the o2 sensor, and cleaned the maf several times and a fuel system flush has been performed
the misfire doesn't sound to be on anyone cylinder. when it does misfire white smoke comes from the exhaust and the coolant level has been going down.
Could the turbo be leaking coolant into the intake causing the misfire when it reaches the cylinder? Has this been an issue before?