How to run a diagnostic on the pump without burning up your ecu

navysrt · 05-25-2005

I was thinking of how I could run the pump to test the injection outside of my car, without risking burning up the ecu...

If you unplug the ecu, cut a small piece of wire, and bridge the red and blue wires...
If you have a relay on the red wire, make sure you key is on the ignition..

This will spray the pump at 11-12 volts depending.. and 13 if your car is on...
Its a good way to check for leaks... etc. I found 2 doing this..

Also I jsut ran the pump for the first time, and sprayed into a empty bottle... the water was brownish at first... I think the pump needs to be run for a min, the first time you get it to clean the seals or something.

05-25-2005	#1 (permalink)
navysrt Water Injection Newb Join Date: May 2005 Posts: 14	How to run a diagnostic on the pump without burning up your ecu I was thinking of how I could run the pump to test the injection outside of my car, without risking burning up the ecu... If you unplug the ecu, cut a small piece of wire, and bridge the red and blue wires... If you have a relay on the red wire, make sure you key is on the ignition.. This will spray the pump at 11-12 volts depending.. and 13 if your car is on... Its a good way to check for leaks... etc. I found 2 doing this.. Also I jsut ran the pump for the first time, and sprayed into a empty bottle... the water was brownish at first... I think the pump needs to be run for a min, the first time you get it to clean the seals or something.