AW4 shifting with big throttle body

[SkylinesSuck]

You could say that. (Russ and I are very close, he put this one together for me while I watched).

viewtopic.php?f=8&t=6025

Super jealous about that btw

[Cummins90]

That's who I'm going to when finances permit. What year ECU is running this engine?

[cal]

It's a 2000, federal emissions.

[Cummins90]

A part throttle boost switch but replaced with a vac switch. No clue if it would work and it seems archaic. As you achieve atmospheric pressure in the manifold a NC under vacuum switch flips to a full 5v signal through a .5v diode. ECU sees 4.5v full throttle. Ignore the red x part of the ground tracing.

[cal]

It took me a moment to wrap my head around that.

An interesting thought. I'm not sure how practical it is, but interesting.

[Cummins90]

My 4yr old son and I were coloring. He takes a look at it and says I'm not that good at coloring.

[Russ Pottenger]

My 4yr old son and I were coloring. He takes a look at it and says I'm not that good at coloring.

Lol, ... That’s awesome.

[Cummins90]

The apple didnt fall far from the tree. While I was cleaning I found a few .5v diodes. If you are interested PM me. You would still need a switch.

https://www.worldmagnetics.com/our-swit ... witch.html

Something along these lines but 74kpa may be too low.