Mike, looks as if the altitude switch was for one year only. Weird. Wonder what was used in 75, 76, & 78? Why only 77? Too many questions. I was hoping this was leading to something with your car.

Definitely weird stuff Zed Head! Why only in CA models for one thing?

I meant first appearance in 77. It was there for 78, looks like it's gone again for the ZX models, 79 and on. So two years. Could be that CA's stricter emissions standards made it necessary.

Got sidetracked today helping a friend fix his daughter's Camry so didn't do any altitude testing. I had just connected both HellFire and the stock ECU to my z and was doing pulse width comparisons & troubleshooting one of my circuits when he called. (Insert Homer Simpson "Dohhhh!")

I'll try and spend some time tomorrow on it, but I've got a lot going on so I'm not making any promises. I have to chase my circuit issue down, hookup my wideband O2 that came in, and clear out a hole in the shop for a 10' long 1912 18" swing SouthBend lathe that I traded for last year. It shows up Monday. Luckily I get to get rid of some machinery as well, but it's still a net floor space loss. It's looking like an all day Tetris game with 2000lb machines.

Len

Zed, that makes sense since mine is a 75 and so is my FSM. I don't think those 2 wires have anything to do with my rich condition. Different stuff in FSM's maybe just another Datsun legacy.

Len, no worries, life happens. Sounds like a nice lathe, maybe you can start turning some custom parts for your Z, swing arms, mustache bar etc.

Edited March 2, 201411 yr by mjr45