So I figure I'm going to do some maintenance on my truck while it's still warm.
One of the problems I've been having last winter was getting my rig to start in the cold. I think It's probably the cold start injector or the cold start time switch.

I'd like to build a failsafe circuit that will drive the injector from a button on my dash.

Does anyone know what voltage and frequency (if any) needed to drive the cold start injector?

I'm running a 91 pickup with 22RE

Thanks!

 

By hard starting, do you mean excessive cranking? I have no problem at all starting my truck in below zero weather.

Maybe someone here will give you the specs for testing the cold start injector time switch. My specs are for the 84-88 models.

One piece of info I read is that cold start injectors plug up much quicker than regular injectors. Maybe it would be worth having it ultra sonically cleaned. I had a guy on ebay who ultra sonically cleaned all of my injectors including the cold start injector. He only charged me $10 for the cold start injector, which was 30% plugged up.