1988 RX-7, stock.

Trying to start first time after rebuild.

I suspect a fuel problem.

Using Haynes manual test procedures: System and hold pressure is to spec. Pump pressure is low (65 psi vs. 65-85), but hold pressure is only a little under spec (50 psi vs. 57) - Good enough to start/idle? Pressure regulator test returns 0 (zero) reading. huh?! During all tests I can hear the fuel flowing. I think I need to check for injector operation (rebuilt and flow tested by Witchhunter, but they've been sitting (in the baggy) for several months until I installed them recently.

I'm zeroing in on the supply and return lines. Not sure I have them installed to the right line at the engine.

Does anyone know with certainty which is which on the vacuum/fuel rack that sits on top of the engine? I can't remember and I can't find a clear illustration or photo despite hours of searching. I just don't want to have to take the UIM off in order to see it!

 

Never mind.
It was just a kinked fuel line

 

see?..workin on cars all the time gets you rusty!!.

ya gotta get Kinky every once in a while to stay on TOP..or bottom..or in a swing..or..!!

 

You didn't say which is which!

Front fitting is the high pressure fuel source (from the fuel filter).

Rear fitting is the return line.