Sputtering at beginning of WOT

[convertix]

Ran both the revised 93 & 100 octane tune and the car is running flawlessly. I’m thankful the tune revision did the trick!

Good deal brotha! I'm going to go out today and let it eat some hellcats.

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[hossman]

Thanks for your advice much appreciated! Funny thing while I was doing some pulls on the 100 tune a C7 Z06 made a fatal mistake thinking I was a stock GT and actually had the nerve to wave bye bye when he got the jump and his face was priceless as my wife waved bye bye as I blew past him.

 

[convertix]

Thanks for your advice much appreciated! Funny thing while I was doing some pulls on the 100 tune a C7 Z06 made a fatal mistake thinking I was a stock GT and actually had the nerve to wave bye bye when he got the jump and his face was priceless as my wife waved bye bye as I blew past him.

I love it when that happens. Happy hunting!

 

[My 1st GT]

I'm having similar issue. At WOT in 3rd around 5k rpm I get hesitation until i shift. If i continue flooring it check engine light flashes with p0300 code then goes away by itself after 3 minutes. installed phase 2 kit 4 months ago. I'm not good at diagnosing things or certain terminology like what a COP is so please be mindful of that. So far i got my Mass air flow sensor cleaned, spark plugs that came with the phase 2 kit checked and re-gapped if needed to .35 and cleaned throttle body. Still have hesitation. Plugs have about 15k miles on them. Car has 98k miles.
I dont dont how to read these screenshots but hopefully someone here does? Thanks in advance.

2015 GT manual.
Roush phase 2 kit roush tune.
Corsa cat back.

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