My 90 formula TPI 305 died yesterday. The problem is in the ignition somewhere because there is no spark. The coil resistence was fine as was the pick up coil. So that leaves either the module or the ECM, right? I have an MSD 6AL and a Blaster 2 coil. Could the MSD 6AL have gone bad and if so I can I check for that? Also the fuel pump primes when I turn the iginition on; is that function controlled by the ECM? I'm gonna connect my fuel pressure gauge to see if the ECM is firing the injectors. If the ECM checks out I guess I should buy a new module. Is there anything else it could be?

Thanks,
Chris

 

umm well my 91 350 tpi before i start it i hear the fuel pump prime also, i guess thats a good thing, because my car runs fine...

not to familar with the msd box..

 

I wouldnt rule the coil out just yet. I had a hypertech coil go bad after 2 months.

cant y ou just disconnect the MSD box and put it back to normal and see if that fixes it,

 

I'm gonna disconnect the MSD box tonight. I have to redo some wiring because I didn't use their connector.

If the coil primary and secondary windings resistence is in spec, shouldn't the coil be fine?

 

I replaced the module and that fixed everything!