Finally sorted the dislodged roof drain in my ZT 190, vacuumed up the few gallons of water in the foot wells (drivers side) then cleaned up the mould and made the interior look new. Then took it to local handwash people who made it look shiny.
Then diagnosed the misfire to a dead coil pack (see separate post in wanted section). Also took a used drivers side side impact sensor from local scrappie to fix one that was drowned due to roof drains.
