So yeah, engine is throwing a code. Just bought this car second hand, first ever 240sx.

So I'm looking at the ECU, but I don't really see the mode selector screw. I see a place where there WAS a bolt of some kind, but it looks like the head is broken off. I have a picture here, is the place circled where the the mode selector screw should be???



I haven't been able to actually take the ECU off yet as all my tools were stolen out of my shead last night and I only have one screwdriver which isn't big enough to take it off. I'm hoping that it's not the one that's broken off!

 

nm, I got it off, it was on the other side.