Primary /Secondary coil failure p0353, 356, 357

[Monera3v]

Hello everyone,

I have been battling these codes for a few weeks now.

I have actually never felt a difference in the car, but today I actually felt it stumble and lose power at around 2000,3000 rpm and return back to normal.

At first (1 month) It would just throw the codes in pending ( still pending )
But now it actually starting to get worst.

I changed all the pigtails on the harness.

I am lost to what is the next approached.

Someone has suggested the ECU is failing and the primary (which is inside the computeR) is failing.

I would like to see if anyone else has been in this same position.

Your input would be much appreciated.

https://scontent.xx.fbcdn.net/hphotos-xta1/v/t1.0-9/12802699_662799615154_3148390243375386397_n.jpg?oh =8015ee1de4cc2ce67b082fa78c5f457e&oe=576721BC

[Uncle Buck]

Make sure your crank sensor is clean

[ZR]

[01-03, 17:45] ZR (http://www.torontomustangclub.ca/forums/member.php?u=3): If it's pending only, ignore until it turns the engine light on. May not even be a coil or ecm problem, slight vac leak at zero engine load may be the culprit especially since it's showing three cyls.


http://www.torontomustangclub.ca/forums/images/statusicon/post_new.png (http://www.torontomustangclub.ca/forums/misc.php?ccbloc=47465)[01-03, 17:43] ZR (http://www.torontomustangclub.ca/forums/member.php?u=3): Still have that ballast up beside the ECM? Does it ever set a code or pending only? Did you detect a miss or only concerned because of pending code?

[ZR]

Turns out, is only occuring on damp / humid days. Just as possible the CAI is ingesting a lil extra moisture n sending the MAF into a tailspin.

[Monera3v]

https://latemodel.cachefly.net/downloads/tsb05-14/tsb04-26-22.pdf s197forum suggested this if issue continues!

[ZR]

Wonder if it would do the same with stock air intake system in place.

[Monera3v]

One of my buddies are bringing me his stocker tonight will drive it around tomorrow all day and see if I can recreate the case issue.

[Big Nick]

https://www.youtube.com/watch?v=y4r5OcHN5Lg

possible reflash but sounds like a bad coil driver/pcm...would swap coils with another cyl first and recheck

[toofast306]

great vid, Nick.
Thanks for posting

[Monera3v]

https://www.youtube.com/watch?v=y4r5OcHN5Lg

possible reflash but sounds like a bad coil driver/pcm...would swap coils with another cyl first and recheck

Great video indeed, I was looking at it yesterday.

[mikewashere]

https://www.youtube.com/watch?v=y4r5OcHN5Lg

possible reflash but sounds like a bad coil driver/pcm...would swap coils with another cyl first and recheck

ScannerDanner is the man!

[Monera3v]

ScannerDanner is the man!

Indeed! Love all his videos.

[Monera3v]

Well drove it today, no code.

Weather seem to be a factor into this intermittent issue.

Going to switch back to a stock intake until my buddies car is back up and running then I would have to return it back to him.

[NickD]

If you need a stock intake I can check if its still on the shelf (I may have tossed it)
You can have it if I do as my cars never going back to stock lol

[ZR]

Well drove it today, no code.

Weather seem to be a factor into this intermittent issue.

Going to switch back to a stock intake until my buddies car is back up and running then I would have to return it back to him.

Just above or just below freezing with high humidity can equal perfect storm for a MAF fed by a stock air box, add in a CAI and the chances increase. We also know many of the '05 up are uber sensitive to just a CAI in perfect conditions.

[Harbinger]

Hope you get this all sorted out.