You get a .7V voltage drop across the diode...if that is only used as a trigger source, it would be OK. However, if the pink wire drives other circuits in the ECU, then it would not be a good idea.

I have the Holley HP, and I just installed a small Painless 4 switch panel under my dash ledge. I know it does not look stock, but for me, it does not matter.

My 2 cents.

Mark

Last edited by lockjaw-express; 03/31/18 09:08 PM.