Question for the electrical experts..

[hottscennessey]

Hey guys,
I run alcohol injection on my supra, I use MAF-T to switch the maps (cut fuel) when the alcohol is being injected. MAF-T does this with a 12v trigger wire.

My problem is, the 12v trigger wire is also the power for the pump. This works out fine, except for the momenet while the alcohol pump builds pressure into the lines, the MAF-T is already cuting fuel. This causes me to run 'lean' well.. leaner for a split second.

My question is - is there any way I can slow the response of the 12v to the MAF-T without affecting the voltage? All I need is a split second, I'd rather be rich for a moment than lean.

If this is technically impossible or not, I wouldn't know, so be easy on me eletrical wizards!

 

[nissota]

Hey guys,
I run alcohol injection on my supra, I use MAF-T to switch the maps (cut fuel) when the alcohol is being injected. MAF-T does this with a 12v trigger wire.

My problem is, the 12v trigger wire is also the power for the pump. This works out fine, except for the momenet while the alcohol pump builds pressure into the lines, the MAF-T is already cuting fuel. This causes me to run 'lean' well.. leaner for a split second.

My question is - is there any way I can slow the response of the 12v to the MAF-T without affecting the voltage? All I need is a split second, I'd rather be rich for a moment than lean.

If this is technically impossible or not, I wouldn't know, so be easy on me eletrical wizards!

Yes it is possible. The link has a delay timer but you will need one with a lower range for the activation time.

http://www.tessco.com/products/displayProductInfo.do?sku=460655&eventPage=1

 

[hottscennessey]

Thanks! the term "delay timer" came up with a few possible solutions in google. I'll look through them and see what I find.

 

[bensn8]

You also might be able to use a Capacitor. Depending on what a "Split Second" is, it takes time for the capacitor to charge and then discharge and flow at it's rated voltage.