I am working on my 2.8 engine and I am having a serious injection problem and hopefully someone has crossed this bridge before. I put in new: wire, plugs, 6 injectors, oxy sensor, cap, fuel filter and after all this, still would not run. Soooooooo I decided to lift out the fuel rail to make sure all the new injector were operating and that is when I noticed that only the left side of the fuel rail (all 3 injectors) was spraying. I looked for fuses and found nothing wrong so I switched all the injectors from left to right to make sure the injectors were good and I cranked the engine and once again the left side of the fuel rail sprayed but not the right. So for some reason I am not getting signal for the right side injectors. I also replaced the ECU. If this makes any sense PLEASE shine some light on the on this problem...... It will soon head to the scrap yard... Thank you, Duckman028

 

Double check the fuses - the right side and left side have separate fuses. If both injector fuses are good it's probably a wiring problem.

 

when you replaced the ecu, did you keep your existing prom, or it came with a new prom?

I would recheck the fuses as stated above.

If not that, then I would start tracing wires between them. Starting with the small injector harness on the rail.

 

All the injectors on one bank share both a power circuit, which is always hot with 12v with the key on, and a switched ground which is controlled by the ECM.

Check to make usre you are getting 12v to the injector harness connection, then check the wires at the ECM, like everyone said.