After reading and reading on how to replace the fuel injectors on a NB Miata, I figured it took around 30 mins for the average Miata mechanic, so I budgeted 3 hours.
The instructions tell you to remove the upper intake manifold then unbolt three bolts holding the fuel rail. They then say you can pull the rail out, but this isn't the case at all. My rail is stuck to a wiring harness that isn't so easily removed. On one end, the one closest to the firewall, 2 wire plugs need to be undone. On that same side, a nut needs to be unscrewed to remove a ground wire. Since this side is inaccessible, I'm deciding not to touch these wires and to just disconnect the one that will give me just enough room to move the fuel rail once its disconnected.
Second, I've removed the wiring from near the front of the engine and have that part loose. But, now I'm stuck on removing the actual fuel line itself. Its a metal line that is stuck inside a plastic conduit like thing. The plastic thing twists but doesn't budge. I'm now reading that the fuel line requires a tool to remove it? Is there anyway around this?
I've attached pictures... I'm not sure why the tutorials make it out to be around three steps.
How do you guys go about doing this procedure?
Can I just disconnect the wiring harness from the injector rail without unplugging it all? There's a hard plastic piece that doesn't allow the wiring harness to move.. Should I just wedge this thing out?