Hey,
When I start the car in the morning, it takes about 3-4 seconds to start. But if I'd turn it off then it'd start almost immediatly. I just replaced the battery, so that should be good enough (except if 90Ah battery is too small?).

What could be the cause? I've done a bit of reading regarding crank position sensor, but then the car would always have problems with starting, not only when cold (or off for more than a few minutes)?

 

Mine does the same, haven't worried too much about it since it doesn't leave me stranded and runs fine. Will be interesting to see the responses. Been meaning to get a fuel pressure gauge on my car, but been procrastinating.

 

It could be either the fuel pump or filter. Try cycling the ignition switch a few times to pos 2 before moving to start. That will identify a fuel supply problem.