I'm in the process of replacing the exhaust manifold gaskets
fuel injectors, and fuel pressure regulator on my 1991 Z28
5.7. 125K miles. I didn't mark the injector plugs on the harness for re-assembly. I'm not sure which plug goes on which injector. Does it matter?, or do they fire at the same time? Any help appreciated.

 

on my 305 upon reassembly it was obvious which connectors went to which injectors. the length of the harness let me know.

 

On the wiring harness that holds the injectors plugs, there are two plugs with equal length of wire. (two sets for each side)Makes it a bit confusing. On the 5.7 anyway. They should space the plugs on the wiring harness to go with each injector. That would make it easier. Of course if it doesn't matter which plug goes on which injector, it's a wash.

 

On the same side it doesn't matter.
The right side injectors are all driven by one ECM driver to ground, one 10amp fuse protects those 4 injectors. The left side is identical.

 

Thanks for the info!!!!