Injector Relay location (2003 e53 3.0i MT)
 

Having trouble identifying the injector relay switch on my 2003 E53 3.0i MT truck.

realoem.com suggests this location:
https://dl.dropboxusercontent.com/u/...803000_iOS.jpg

My truck has this configuration:
https://dl.dropboxusercontent.com/u/...903190_iOS.jpg
https://dl.dropboxusercontent.com/u/...923521_iOS.jpg

Which relay is the injector relay? The two diagrams are not exactly the same...

Thanks in advance!

Bump.

Injectors are fired by the DME and does not utilize a relay. There is always 12 volts power at the injectors and the DME sends a grounding signal to the injectors to fire the injectors. Perhaps your problem is with a bad ground.

Across all 6 injectors?


2003 X5 3.0i Sport MT
2004 M3 Coupe
1997 M3 Coupe

There is normally a common ground used by the DME to ground all the injectors. You can look at a wiring diagram to locate the common ground that the DME is using to ground each injector.