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Re: AW4 shifting with big throttle body
Posted: May 1st, 2019, 5:16 pm
by SkylinesSuck
cal wrote: ↑May 1st, 2019, 2:29 pm
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
Re: AW4 shifting with big throttle body
Posted: May 2nd, 2019, 7:38 am
by Cummins90
That's who I'm going to when finances permit. What year ECU is running this engine?
Re: AW4 shifting with big throttle body
Posted: May 2nd, 2019, 7:57 am
by cal
It's a 2000, federal emissions.
Re: AW4 shifting with big throttle body
Posted: May 3rd, 2019, 12:16 pm
by 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.
Re: AW4 shifting with big throttle body
Posted: May 3rd, 2019, 12:21 pm
by 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.
Re: AW4 shifting with big throttle body
Posted: May 3rd, 2019, 1:11 pm
by Cummins90
My 4yr old son and I were coloring. He takes a look at it and says I'm not that good at coloring.
Re: AW4 shifting with big throttle body
Posted: May 3rd, 2019, 5:43 pm
by Russ Pottenger
Cummins90 wrote: ↑May 3rd, 2019, 1:11 pm
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.
Re: AW4 shifting with big throttle body
Posted: May 19th, 2019, 8:55 am
by 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.