2000 corolla starts for 3-4 sec's then dies

[donomar]

The engine stauled,before stauling cel started flashing,when i try to turn over the engine i can hear the pump turn on but when it dies the pump shuts off.
I switched the 2 relays related to the pump with the A/C relays,they r the same,put in a new pump,the coil before were bad so i replaced 2 of them and the spark plugs,they r all firing and also cheked power to the injectors all are getting power,put on the obd II p-1303 code,came up,i think it is related to the plugs,after recently replacing the plugs and coils the cel came on after a long run,but while runing it like this it shutted off.
I changed the crank sensor 2.
The mechanic switched a coil with one i recently changed then it started,it ran for 2 months then it shutted off,i checked the coils but then i noticed that the bolts were missing off the power steering assembly,the 2 off them,i put them on and still the engine is not responding,the cel while the car was running gave missfire in the 4 cylinders,it was erased.
Any suggestions???

[TrailDust]

to Toyota Nation!

I'll move your thread over to the Corolla forums so the members there can help you out, but I'd also recommend that you use the search feature to locate any possible previous threads that may deal with that issue.