IS TBI back?

[dave w]

Yes I know the ECM is real slow but I was thinking of just picking up the ground signal off the TBI injectors.
Rather than try and communicate with the ECM.
More a electromechanical than a computer style power adder.
Years ago I used a GM 3Bar map sensor to control boost enrichment on a turbo BMW with Ljetronic just added fuel with injectors in parallel with the stock ones.
When boost came up the second set of injectors turned on used a VCO and an AND gate to control proportional fuel.
Just AND the injector pulse with the VCO output for secondary injector control.

Ok, you have SKILS, most members don't.

For members who would like additional information on an "AND Gate" http://www.electronics-tutorials.ws/logic/logic_2.html along with information a Voltage Controlled Oscillator (VCO) http://www.falstad.com/circuit/e-vco.html

What I find interesting is most of the early Supercharged Buick V6 applications used a resistor bypass system on the fuel pump when in boost, allowing full battery voltage when the supercharger bypass valve closed.

dave w