That's surprising. With the O2 sensors and EFI, I'd think it should be running spot-on. What were you doing before you shut it down? Was it idling for a bit? If so, it may not be an accurate indication. To get an accurate reading of what the plugs look like, you should kill the engine "at speed", coast to a stop, then pull them to take a look.
Last edited by truckin-on; 30/06/17 04:19 AM.