Fuel pump wont turn on any ideas/ecu controlled?

[GregWeld]

Originally Posted by CarlC

Good call Greg. I was thinking downstream of the relay.

I know you know that -- but I try to post so that someone that isn't as familiar with all of this kind of stuff doesn't make a big mistake....

Many of the 'circuits' in an ECU use only 5volts.... and we don't want to be putting 12 volts to them! So I don't use a test light in electronic circuits -- I save that for checking a light bulb circuit...