So i recently picked up a 1985 nissan 300zx turbo, ran pretty good for a while went to do a spark plug and wires change, now its only running on the drivers side left cylinder bank. initially i figured i screwed up the plug wire order, but everything is correct, the plugs are all gapped correctly, and the distributor is sending spark. I checked for fuel in the rails, regulator was going bad so i replaced that but same issue. Still running on the left side only, so at this point it seems one set of injectors are not being triggered by the ecu for some reason? Could i have screwed up the crankshaft position sensor? I didnt mess with the distributor at all just plugs wires and a fuel pressure regulator and now i only have a 3 cylinder turbo.

 

You do know that Cylinder #1 is on the passenger side right? Some muscle car guys that get there hands on a z car would screw that up real quick.

 

Did u figure it out yet!