I'm getting occasional puffs of bluish smoke from the tailpipe of my 96 Miata 1.8L.
I replaced the PCV valve, which I know can cause smoking if it fails. I also put clamps on both ends of the hose that connects the PCV value to the intake manifold and I replaced the grommet that the PCV valve goes into in the valve cover. I also taped the end of the hose that connects the other side of the valve cover to the air intake just in front of the throttle plate. I think I have all possible air leaks fixed for these parts.
All of these repairs fixed the problem to some extent, but still, on occasion, when accelerating away from an intersection, particularly when turning, I get pinging and a quick puff of blue smoke, sometimes hard to see, sometimes a big fat cloud.
Any ideas on what else I can check before taking it to a service garage? Is there anything in the idle air components that could cause this?