I remember some posts about that.

 

every now and then when i go 5k rpm the engine light blinks few times and goes away.. i think the misfire is still there

 

Ok so today I learned that 2012 5.0 engines were coded 6009-F, the shortblock I got says 6009-G which is the code for 2014.

 

That's good news!
Have you called them and explained the code? Asked about the crank relearn?

 

i should have but the light never came on no matter what i did so i guess it learned by itself

 

Got my car back (haven't started it yet) it was more than that check this out :P

 

Why are you using low octane gas? The manual calls for 91+

Your getting sub par performance and worse gas mileage using 87 or 89

 

I read on this forum somewhere somebody has had the same problem as mine, so #2 and #8 cylinders were misfiring, they changed the spark plugs and reset the crank position and bunch of software resets, but the relearn wasnt the issue in my case, it was the actual misfire.

ever since the short block was replaced ive always been getting 91 until i break-in for the next 3000 miles

 

But why was yours misfiring? If the crank sensor was not programmed properly the first time, it would cause it and the need for plug replacement. That he writes "ok" after learn... means he didn't need to do it this time? Or that he did it and it is now "ok"? Did he tell you? Because the work order doesn't really explain anything very well.

What's SM 44328?

 

Through Ford's internal service lookup tool "PTS/OASIS" i was able to find the ssm

SSM 44328 - SOME VEHICLES COULD EXHIBIT MISFIRE CODES AFTER CERTAIN REPAIRS - MULTIPLE VEHICLE LINES

Some vehicles equipped with On Board Diagnostics (OBD) misfire monitor neutral profile learning capabilities may experience the MIL illuminating or flashing, accompanied by one or more engine misfire related codes(P030X). These faults can be a result of the crankshaft position sensor profile (MP_LRN) not being relearned after certain engine and transmission repairs have been performed. The MP_LRNdata is no longer cleared with a KAM reset or battery disconnect. Repairs that can require relearning of the MP_LRN data with IDS include: crank sensor, trigger wheel, engine timing, crank pulley and any time the engine or transmission (including DPS6) is removed for service. From the IDS toolbox select "powertrain", then "service functions", then Misfire Monitor Neutral Profile Correction" and follow the on screen prompts.

 

Interesting.

You'd think they'd do this automatically every time.

 

you'd think so right? they wont do it unless problem comes up

 

Well you know, it costs all that computer time.

 

so after my last visit where they fixed cylinder #2 and #8, today it gave me my first check engline light again

 

I read this earlier today. I wonder if this might be something?

The PO300 code, random misfire, usually is a sign of a faulty coil pack.

https://themustangsource.com/forums/...3/#post6900693