jmw_man

Hi all, It's been a while since I posted. Anyhow, my Z has started giving me problems after running pretty good for the last year. This problem started about a couple months ago. One day I got in it and tried to start and it just turned over and over and over and I never heard the sound of ignition as if there was no fuel or spark. Then moments later it fired right up. As the days progressed since then, those moments between not firing to firing right up increased to the point now that it won't fire at all. First off I want to point out that I've done some browsing around the internet for other people having this problem and I have found forum thread of such people. The PROBLEM is, those threads were largely unanswered or the OP never came back to update as to what was causing his Z's problem. Spark, air, and fuel right? Well,... Air - Nothing looks suspicious there. Fuel - I hear the fuel pump. I haven't checked the pressure yet but the pump is definitely working. Fuel is also definitely making it past the filter too. I say this because I noticed a tiny fuel leak near the injectors. More specifically, the number 3 or 4 injector. The line that goes to it will get soaked which I find really odd. I need to look into that further but I think that might be a separate issue. Let me ask this. Is it possibly my injectors are clogged enough that this could happen? Also, maybe someone can shed some light on this question but does the injector ONLY squirt fuel when it receives a signal from the computer? This is something I need to look into. I have pulled the control unit or whatever it's called and checked all the pins and everything that's supposed to have battery voltage does have battery voltage including the 6 pins that go to the injectors. FYI, I have the E.F.I engine I believe because I have a cold start valve. If I remember correctly the E.C.C.S engine doesn't have the cold start valve. Anyways, I was going through the EFEC section of the FSM, particularly pages 83 and up to check the control unit. All of the injectors had voltage. As far as diagnosing a possible fuel problem, I just need to know if it's possible for 6 injectors to all clog in the same timeframe. I also need to learn how to test each individual injector. I can't imagine that all 6 injectors have stopped receiving voltage at the same time. Maybe someone knows what I'm talking about. Spark - It's not the coil, I changed it out, still experience intermittent starting with new coil. I doubt all spark plugs went out at the same time. Is it possible that the timing could be soooooo faaaar off that it won't fire? I can't imagine that being possible. Everything looks normal under the distributor cap. Can someone point me in the direction of a list of steps to further my diagnosis? Thanks, jmw