CRANKS BUT WON'T START on 1999 Kia Sephia

CRANKS BUT WON'T START HAS FUEL PRESSURE AT RAIL HAS SPARK AT INJECTOR CAN SPRY STARTING FLUID AND WILL RUN FOR A FEW SECONDS PLEASE HELP

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1 answer
On something like this, you need to be able to see the computer data, even an open throttle position sensor will stop the injectors from opening, but you need to see and verify this condition on a data stream before you go out and spend $hundreds. At least pull the codes, that may help you in solving your mystery.