tried the 10 sec idling before switch off, hard starting problem seems to have gone away
Glad to know it works. I am guessing that the idling allows the excess fuel to burn off. When you slow down the car and fully stop, you can actually notice the RPM sitting at about 800rpm before slowly settling back down to 650rpm. So I think that the moment you stop the car with your foot off the accelerator, the electronic throttle actually keeps the throttle open more than needed for just idling, resulting in more fuel being pumped in. If you turn the engine off at this point, the excess fuel is not burnt and it just wets the cylinder/plugs. That's probably why the problem happens only during warm starts but not on cold starts in the morning.
Originally Posted by blk05gli
Bookmarks