P0300 and P0316 After PBD Base Tune

[Inconsis10t]

Oh ok . No I didn't , the shop that did my install never mentioned the need for it and they are pretty particular .

Yea I asked and my shop said no need for it. I did notice that the diff gets up to temp much quicker.

Before with the stock 3.73 it would be about 40 minutes of highway driving before it got to 100° now in 20 minutes it is around 140°.

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[baggedS550agp225]

Hey guys having similar issues. 2017 gt roush supercharged. Was in the highway and a vette passed me, down shifted into 5 to catch up soon as I hit 100 went to shift to 6th and immediately had a few misfires. Cel for p0113 and p0316. Iat reading -40. Im thinking it’s due to bad tune and bad iat sensor. What do guys think?

 

[Cobra Jet]

Check wires to connector and connection at crankshaft position sensor for the P0316.

The P0300 is just a random misfire code, the most common posted all over this site. If it were an actual cylinder issue, it would be a P0301-P0308 (with the end # designating the cylinder).

This thread may give some enlightenment to Ford's misfire strategies:
https://www.mustang6g.com/forums/threads/good-tech-article-on-ford’s-misfire-strategy.108076/

Also to note, this thread contains shop manual info about diagnosing the S550 misfires:
https://www.mustang6g.com/forums/threads/misfiring-even-after-replacing-coils.153240/#post-3124335

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