Turns over but wont start no fire to coil packs was running when parked

Loss of spark ? CK coil or coil pack or ignit relay. Any CK engine lts? coolants sensor or temp sending unit.? Is it running hot?

MAYBE CHECK FOR CODES OR COIL PACK HAVE A SHORT

have the Ignition Control Module checked out .Don't go and buy without testing first .As they cost around $900.00.

Tune up ,fuel filter,module,battery and connection.

Souond like it mite be the coil pack check in see if it geting fire if not coil pack should fix it

You have three choices. First, check the spark and coil system to ensure you are getting a spark. Pull off a plug wire from the coil pack and crank. Have someone watch to see sparks snapping off the coil pack. If you don't have any replace the control module under the coil packs.

Second, you may not be getting enough fuel pressure. Put a gauge on the fuel pressure test port. You may have a bad oil pressure sensor, located down above the oil filter. Check that oil pressure sender and make sure the connector is pushed in. The power to the fuel pump runs through the oil sender. If the engine starts and oil pressure doesn't come up quickly, the computer will shut off the fuel pump. Check this and you can also manually engage the fuel pump from the relay block down by the passenger feet.

Third choice, and it's a long shot, check the harmonic balancer and the crank position sensor. If the sensor is bad, the computer has no idea when to fire the spark plugs. A magnet is on the harmonic balancer and flys by a sensor to induce a voltage in the coil and tell the computer what position the crank is in.

You also may have a bad computer.

You can figure it out.

check the fire to the coil pack if it's present then check the pulse to the crank sensor

Check/replace the crank angle sensor, and maybe the throttle position sensor.

You mean does not start or does not run ?? If not start, either batt or startert if not running either no spark or no fuel.

have you changed the ignition wires? perhaps firing order crossed? if not coil pack or ignition wires faulty how do you know it is not "FIREING" on 1 & 4 have you tested it with a spark tester tool???