Hi, this is my second lexus, and my first SC. I never had to touch the ES300(well it was basically a camry). But my SC seems to have a character of it's own. The engine skips, not all the time, only when it's warm. So, I'll be driving the car for about the first 15mins with no indication of the engine skipping, and then all of a sudden it feels like the car needs a tune-up. Any idea what this could be? I think it's some sort of sensor, but since I've never worked on a lexus before, I don't know where to start.
Also, I tried doing a tune up , but the middle two plugs in the i-6 is impossible to get to, unless you take the intake off. Does anyone know how if there is another, easier way to do the tune up?
Any advice would be deeply appreciated. B)