|
Are you sure it is blue smoke and not black? Blue suggests oil and black suggests fuel.
If its black, I would check your fuel pressure regulator on the injection rail. If the membrane in this gets ruptured (even a slight tear), your fuel pressure can be off and it could be running rich at idle...and you computer could be trying to correct for it, but it is out of range.
If not that, try doing an Auto-RX treatment in the oil. It does some wonders on cleaning out deposits in engines over the life of an oil change. It is a bit pricey ($20) and only available online, but it is one of the few engine products which has a strong following that works. It certainly couldn't hurt.
|