Problem with Fuel Injection

[callum]

Alrighty after the update I cant click on anything inside fuel injection and exhaust, not sure why.

The updates were successful. i closed the game and opened it again a few times but no success :/

[Killrob]

As we have not experienced any problems I would like to ask you to make sure you have made a selection for all option before the point you get stuck. Fuel for example. If that doesn't work, please screenshot the situation.