Relay solenoidDid you replace the whole controller, or just the relay?
Yeah I had my dad help me do that and there wasn't power in the coil so I'll check fuses but for now I made the glow plugs manual with a push button and that worksThe small wire that hooks up to the solenoid is what excites the coil. With the key in the run position, check with a meter and see if there is any voltage. You'll need to be fast, or have some help, because it DOES time out. If that wire doesn't have power, check fuses. If fuses are good, and you have power getting to the controller, then it most likely is going to be the controller.