93 300zx NA security light flashing car doesn't start.

[madipietro]

Hello folks! I'm having an issue with my 300zx, it happened to me a year and half ago that the car started failing when running the first time I pressed the gas pedal when running, and the car lost power, that happened till the car died, I left the car a few minutes stopped and then it worked again like a charm that happened to me several times in one day till I stopped using the car and take it to the mechanical. Now it past almost a year and a half, the car has a new battery, the engine is rotating as expected but when we try to start it the security light start flashing and the car doesn't start ( the engine is rotating ) but it looks like dead, we checked the fuel pump and it's sending fuel to the engine, we also checked the tension to the spark plugs and it looks ok, and we also unplugged the security system. Do you guys know what can be happening ? Thanks a lot!.