START by chasing the Security light.
When you get that figured-out, if there's still a driveability issue, verify fuel pressure, then connect a scan tool, verify all the sensors, and computer outputs--EGR, spark advance, etc. Look at the condition of the plugs, plug wires, cap 'n' rotor, etc.
When you get that figured-out, if there's still a driveability issue, verify fuel pressure, then connect a scan tool, verify all the sensors, and computer outputs--EGR, spark advance, etc. Look at the condition of the plugs, plug wires, cap 'n' rotor, etc.