Ok so I changed the plug and the coil and cyclinder 6 and...


Ok so I changed the plug and the coil and cyclinder 6 and 7 Mechanic's Assistant: What is the make/model/year of your car? Ford 2015 muctang gt Mechanic's Assistant: Are you fixing your Mustang GT yourself? What h...

Ok so I changed the plug and the coil and cyclinder 6 and 7 Mechanic's Assistant: What is the make/model/year of your car? Ford 2015 muctang gt Mechanic's Assistant: Are you fixing your Mustang GT yourself? What have you tried so far? Changing the coil and the plug

Automotive Expert
Welcome to Just Answer. My name is\*\*\*\*\* am a manufacturer trained Ford Senior Master Technician with 30 years of hands on experience. I am here to help. I'm sorry to hear you are having trouble with your vehicle today. The system will offer you a phone call. Feel free to accept or decline this service. It does not come directly from me. I personally cannot provide phone assistance on this website as I only do on line chat. I am usually on line in the evenings after 6:30 PM CST after I get off of work. Please give me a few moments to go over your concerns. First and foremost let me give you a little information on how this platform works. It is a strict one question one answer service. You ask one question and I will get as many details as I can from you. The reason for this is so I can provide you as accurate an answer as possible. Once I have submitted your answer please feel free to let me know if any clarification is needed about the answer to your question! Would you mind sending me your VIN and as many details as you can about the problem? This will allow me to give you the most accurate information possible based on your specific vehicle. Please know this is not an auto response message system. I am a full time Ford automotive technician, I review cases as they come in. If you do not receive a prompt response, this means I have stepped away momentarily or are working on your case as well as many others. Please be patient and I will be with you after your reply! Why did you change the coils and plugs on #6 and 7? What trouble codes did you get?

Im getting p0356 p0357 and now p0358
Automotive Expert
Did you get these same codes before the coils were replaced?
Automotive Expert
These codes are coil driver circuit fault codes in the PCM ([Engine](/topics-engine-ford/) Computer). If you changed toe coils, then the problem is internal in the PCM.

Of corse
Automotive Expert
Are the coils factory or aftermarket coils?

There from aftermarket
Automotive Expert
All of them?

there street fire coilsExcept you cyclinders 6 and 7 witch I just changed
Automotive Expert
We have seen some aftermarket coils short out and send voltage spikes to the PCM and short out the coil driver circuits.

Whats the price on a new PCM
Automotive Expert
They range from $900 new from Ford to $110 on the internet used. But you will need 2 keys for the vehicle and a scan tool that can program the PCM to the vehicle for it to allow the engine to start.

Who has the scan tool
Automotive Expert
So good repair shops and Ford dealerships.

Ok
Automotive Expert
OK.

Thanks
Automotive Expert
Your very welcome.

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