I have a 95 mazda protege, with the 1.5 litre dohc engine, automatic transmission. it won't start. It's getting fuel, it's firing. I replaced the fuel pump because it wasn't coming on, I replaced the spark plugs, cleaned the battery posts and cable ends, charged the battery completely, checked for vacuum leaks, and I can't find anything. It spins over with no problem, just won't start. I have been trying to figure out the problem for 3 days. I cranked it up and it went dead immediately when the problem occured. Can you give me any ideas of what else to check? Thanks.