A 1996 ford taurus with no spark

i think its the ecu, i had misfire codes come up in my 06 explorer, changed everything like you did, it was the ecu, i got one on ebay with keys for 150, it worked, also ford systems require a fully charged battery

i'll try n type inase picture i post doesnt work
1 2 3 5 1
4 5 6 6 2
4 3
front of vehicle

A code P0305 may mean that one or more of the following has happened: 1 Faulty spark plug or wire 2 Faulty coil (pack)3 Faulty oxygen sensor(s) 4 Faulty fuel injector 5 Burned exhaust valve 6 Faulty catalytic converter.
Possible Solutions If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back. If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

if you replace them with non factory parts,could be the problem,sometimes parts from local autoparts coming with inperfections or damages,you may have to get the parts at the dealer,happends to me few years ago...

You visually checked for spark and there was none? #3 and #4 show to be on same coil, each coil fires two plugs. Battery has a full charge? The red wire at coil pack is voltage, it has good voltage? Any applicable trouble codes?
The yellow wires with different tracer colors are grounds controlled by the pcm, one ground for each coil. Did you check voltage on ground wire engine cranking? I can't rule out a faulty coil driver in pcm. It's possible your old coil pack damaged the coil driver in pcm? If that is the problem, hope it didn't hurt the new coil pack.

Hello and welcome to FixYa!

Looks like that there's no current flowing that's why it won't fire up. I strongly suggest that you check and replace the coil pack if necessary. If the coil pack is faulty there will be no current to the plugs. One good reason why it won't fire up.

Hope this helps and thank you for using FixYa! Have a good one!

Removal & Installation

3.0L (VIN S) Engine

1. Disconnect the negative battery cable.
2. Unplug the engine control sensor wiring connectors from the ignition coil and the radio ignition interference capacitor.
3. Tag and disconnect the spark plug wires from the coil by squeezing the locking tabs, then twist the tab and pull upwards.
4. Unfasten the four ignition coil retainers and remove the coil and the coil ground wire the radio ignition interference capacitor. Save the capacitor and coil ground wire for re-installation of the coil assembly.
5. Wipe the coil towers with a clean cloth dampened with soap and water. Remove any soap film and dry with compressed air. Inspect the coil for cracks, carbon tracking, dirt or damage and replace as necessary.
   
   

   Fig. Ignition coil assembly mounting-3.0L DOHC engines
   

To install:

1. Place the coil, capacitor and the coil ground wire onto its mounting location on the right hand valve cover.
2. Install the coil assembly retainers and tighten to 45-61 inch lbs. (5-7 Nm)..
3. Apply dielectric compound D7AZ-19A331-A or its equivalent to the spark plug wire boots.
4. Attach the spark plug wires to their proper terminals on the coil and make sure the boots are firmly seated so that the locking tabs engage.
5. Attach the engine control wiring connectors to the ignition coil and the radio ignition interference capacitor.
6. Connect the negative battery cable, start the vehicle and check for proper operation.

my taurus did not do this until i had over 124,000 miles you may have to replace all of the plugs and the wires and the fuel filter give this website a try www.taurusclub.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your car wish you the best of luck Michigan Man.

Check coil and coil wire sometimes the spark is intermittent. Make sure you oil stick shows oil near the full line. Make sure your battery is fully charged the car will not start if battery voltage is below 12 volts. Make sure your car is tuned up with good spark plugs, wires, clean air filter, and a clean fuel filter. Your Taurus is a great car take care of it.

that would be a good start. pull the plug on # 1 cylinder and plug into wire now crank engine you should get spark same as # 5 cylinder if no spark replace the coil pack