What do you do to repair?

p0351,p0352,p0353 and p0354. It won't start because you have four cylinders not firing . P0351 - Ignition Coil A Primary/Secondary Circuit Description: See the description for DTC P0350. Possible Causes: See the possible causes for DTC P0350. Diagnostic Aids: See the diagnostic aids for DTC P0350. Application Key On Engine Off Key On Engine Running Continuous Memory Coil-on-plug (COP) ignition testing - GO to Pinpoint Test JF . GO to Pinpoint Test JF . Coil pack ignition testing - GO to Pinpoint Test JE . GO to Pinpoint Test JE .
When you see these codes , it's time to worry . These ford coil on plug system's can fry the transistors that control the coil firing . New computer or reman at ford $ 800.00 buck's then it needs to be programmed (dealer) What engine ? 3.0 v-6
This happens when the spark plug's are neglected , gap get's to wide , make's coil's over heat an break down , spark goes through the primary wire to the computer . Your best bet , take it to a qualified repair shop.

These codes ALL refer to the ignition coil of your car. Get your ignition system checked.

All those codes are the same BASIC code just for different coil pack secondary. You need to check the wiring from the coil packs and make sure they are all grounded properly. Corrosion or loose connection at a bus terminal can cause this. Here is a link: P0352 OBD II Trouble Code Ignition Coil Primary Secondary Circuit...

Look at fuel trim on a professional scanner

You still have the same codes for the same cylinder
misfires,IF the codes are correct

The misfires could come from valve issues,the valves themselves
or the variable cam actuators if that applies,or from fuel issues,but
not as likely on all three cyl on same bank

You need to do a cylinder leak down test on all cylinders--to eliminate mechanical issues

Then a cylinder contribution test electrically with scope software

Then scope the timing events,the cam advance events,the crank
position, all layered on the same screen & see if they line
up where they belong.

If the cams are not the issue, then your left with a serious vacuum
leak in the intake on one bank.

What I'm saying, is you have one bank with misfires apparently
not now from the ignition since the coils were replaced

For some reason you question has been duplicated several times, so I will answer this one.
Code 1391 may be a problem with the ABS system, the other three codes are concerning the first 3 coils. Your engine has direct spark so each cylinder has its own coil.
I would clear the codes and see which ones come back after a test drive. If the three coil codes come back the coils would need to be tested.

Kevin, can you give me a little more to work with? I would like year, make and model of your vehicle along with any other symtoms you may have experienced. Please get back to me with this information, and don't start replacing parts that you may not need. Waiting on your response.

The codes you mention 301-302-303 are all misfire in the respective cylinders. you should replace the coil, while you are at it also verify the condition od the sparkplugs.

p0351- ignition coil A primary or secondary fault
p0352- ,, ,,,,,, ,,,,, B ,,,,, ,,,,,,, ,,,,,,,,,,,,, ,,,,,
p0353 - ,,,,,,,,,,,,, C,,,,,,,,,,,,,, ,,,, .,,,,,,,,,,,,,,,,
you may have a problem with yuor ingnition system

Visit http://www.troublecodes.net/OBD2/Pcodes.shtml

For full details of codes.

Cheers.

Rate this please.

Have your ignition coils replaced