Problem 2g 4g64 99

[sharkgames08]

Hello guy I’m new in the dsm forums, I have a eclipse 99 spyder 4g64, I’m from mexico so sorry for my writing ok, here’s the problem my car crank ok I have fuel and spark,and start very good but it dies 1 Sec and don’t stay on,I have to open and close the key switch to maintain working the engine, I close and open the circuit with my keys, something it’s shutting down the power of the coils and fuel, the mechanics they say it’s inmovilizer or the alarm, I have 6 months with this problem, I change the ckp and cam sensor, and the thing I found was the alarm doesn’t come on in the security light when I close the doors,

 

[dgdsm]

It's hard to get the real details from your description of the problem. But I don't think it's the alarm system. There is a relay you can take out to disable the alarm system and see if the problem is still there.

Did you check:
- Fuel pump relay
- MFI relay
- Power transistor unit
?

Also you say you have fuel and spark. What about air ?