injector ground wires.

[adema2626]

Ok so im having a problem with my injectors being stuck open due to always being constantly grounded and always having power. Because at all times there sup post to have 12-13 volts or something close to that.

But what im wondering about are these 2 injector grounds how are they grounded? are they just a straight type of ground that goes straight to the chassis?

I know the injectors are sup post to get pulsed and not be constantly grounded. Are the grounds the actual injector 1,2,3,4 pin's and thats what pulse's and the "injector ground" wire is just a ground is to the chassis that makes it so that those pins have a ground??

Any help would be great thank you.

[adema2626]

bump still lookin for a answer.

[Legacy777]

The injectors are grounded through the ECU.

12v is supplied from MB-3, which is used to supply power to the ignition & fuel pump relay, and then goes to the ECU's power supply as well. The injector power is tapped off this line.

The other side of the injectors go to the ECU which triggers them to open or close. Check your ECU and ECU grounds.