Originally Posted by
onehundred80
Describe your problem in more detail to get good answers.
THIS. Do this.
NOW. My money is on, in descending order, RCM, Crank sensor, battery (yes, a weak battery will spin the engine over, yet not provide the required 10.6 volts or so needed to make the ECU work - hence your 'mechanic' thinking the ECU is bad), fuel pump, etc....