My '74 2.0 is running rough and I'm trying to rule out as many causes as I can. The car was running fine, but started idling low and acting like it was running on three cylinders a few minutes after being started. Now it acts this way right at startup. In trying to rule out the fuel system (I'm also looking into the ignition and injection, but that's a different thread), the following has been done:
Confirmed the fuel pressure is good at 29.5 psi
The injectors were just tested and cleaned
All new SS and rubber fuel lines (no kinks, no leaks)
Cleaned fuel tank, brand new sock.
If I stick a stethoscope on each injector while the engine's (barely) idling I can hear them all click at a regular rate. All click at the same volume without any dead spots in the sound. Can I rule out my trigger contacts because of this? I would imagine if the trigger contacts were a problem, I wouldn't hear certain injectors click at all, or perhaps there might be erratic clicking. Anybody know if that's the case?