Since I have the relay for my basic system mounted inside the cab I can hear the relay click on and off for the water injection. When I come up onto the boost pressure the relay can chatter a bit. Sometimes when I am slowly bringing it to boost the chatter can go on for a fair bit.
I could see this being a potential problem (also excessive relay wear) with a pre-turbo nozzle as the pump could be putting out low pressure while the relay is figuring out what it wants to do.
I thought about adding a 220 uf capacitor to the line voltage (hmm, maybe the ignition wire would be a better idea). Yeah, it would have to be the 12v ignition wire going into the relay. I can bring the system up to where the WI system is on steady and then switch it on and off from the switch on my dash and the relay doesn't chatter.
Hmm, nope, maybe it needs to be on the line from pin 85 to the
pressure switch. That way the capacitor can pick up the intermitent moments. Yeah, that must be it. ??
Anybody with some suggestions?