Update: He managed to get the pit set up. However, there are a few issues.
1. Pit boxes are in the walls and are too close to each other.
2. When the player tries to pit, spotter tells him he is too far forward or from the right or can't pit for some reason.
https://www.reddit.com/r/Nr2003/comments/1q28fs9/help_pit_stalls_need_fixing_on_both_dinoco_light/
#1 - change the dlat value of the pitbox or pitwall
#2 - the pit box must be designated “pit box” subsurface, the “pit road” must be designated “pit road” subsurface
Follow the instructions…
From the : Pitroad, Pitstalls, and Pit lp's "HOW TO"
2. PITSTALLS
The second value {stall_# = <dlong center of pitbox> <dlat center of pitbox> <angle of the car when placed in the pitbox>}, the dlat center of pitbox, will normally be the same (+/-) for all the stalls if pitroad is straight. If pitroad and/or the track along pitroad is curved, this value will vary. This value sets the distance of the pitbox from the pitwall (if there is one).
The pit crew location is tied to the dlat value, so you'll want to check to make sure that the value puts the crew behind the wall when not in action, and standing on the wall as the car comes into the pitbox.
If there is no "Pit Stall" subsurface, the spotter will say, "you're too far to the right", "you're too far too the left", and it's impossible to position your car correctly (or get service). If the "dlat center of pitbox" is too close to the "Pit Road" subsurface, the spotter will say, "you're too far to the right", "you're too far back", "you're too far foward", and "you're too far to the left, we can't change the left-side tires...". If the "dlat center of pitbox" is too too close to the pitwall , the car may be impaled on the pitwall when it is placed onto the pitstall, however, you can get serviced in a race.
The ai mostly stop at the pitbox center location. The Player must be close to the pitbox center dlong value, but has quite a bit of left/right of center wiggle room.
Pit stall dlat dimensions:
pit crew @ rest: +/- 3.9 from pitstall center
pit crew on wall: +/- 3.4 from pitstall center
To receive full service:
There are minimum and maximum distances from the track.ini stall_x dlat value where the Player's car can stop.
+/- 0.75 center of car from pitstall center toward wall (before there's no service for tires closest to wall)
+/- 5.0 center of car from pitstall center away from wall (pit stall subsurface must be wide enough to support this distance, all wheels must be on pit stall subsurface)
Pit stall dlat dimensions:
pit crew @ rest: +/- 3.9 from pitstall center
pit crew on wall: +/- 3.4 from pitstall center