E6K

This is sill but I doesn't matter which side of the injector is 12v and which side is grounded correct?

So correct me if Im wrong but pin 25 [13VDC ECU Power] will go to one side of each injector.. and then pins

[19 Inj1]
[20 Inj2]
[21 Inj3]
[22 Inj4]
Will go to opposite side of each injector... ?

If this is all correct, which i assume it is since its fairly straight forward, are Inj1 and Inj2 usually primary and Inj3, Inj4 secondary? or which is the proper way to configure them? Also does it make a difference or can it be fixed via tune either way? thanks!

 

Injectors will get a fused and relay controlled Bat+, usually done as a dedicated circuit, all to 1 pin on each of the fuel injectors (doesnt matter which pin, current will flow either way), the other pins will be wired to their specific injector wires on the ECU.

1 & 2 are Primary
3 & 4 are Secondary

 

thanks!