DBW for Megasquirt

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panel
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DBW for Megasquirt

Post by panel » Fri Dec 02, 2016 11:42 pm

Saw this from the MS Runs and thought I'd share if you guys hadn't seen it yet.
Hey I wanted to show you guys what I figured out the other day. I wondered If a mk4 vw ecu would work like a DBW controller if I only wired it to the pedal and throttle body. Well It worked:

https://www.youtube.com/watch?v=8fCR7CZQZxc

https://www.youtube.com/watch?v=3SfjRMXvaJU

I made an adapter to mount a throttle position sensor to the side of the dbw throttle body. This provides a signal for megasquirt and does not mess with the safety and reliability of the vw system. There are tons of Mk4 jetta/golfs in the wrecking yards so these parts are very easy to come by and there are many different throttle bodies that will work with these ecus, even one from a dodge 5.7 hemi!
I know from my experience building the twin engine jetta vr6 w8, that multiple ecu's will read a single throttle pedal when wired in parallel. This means there are many new possibilities for crazy intake manifold designs using multiple throttle bodies where a mechanical linkage between them is not possible or practical.

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