2020 5.0 misfires on track

[JeffV8]

I would find another dealership to bring your car to. My car always got warranty work done and knew I did track nights.

 

[dsharek]

I would find another dealership to bring your car to. My car always got warranty work done and knew I did track nights.
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I sold the dealership that gave me problems my “abused” and warranty-less car a few months ago for more than I bought it for. My track SN95 Mustang has been doing well.

 

[Shadoww_5.0]

I have a 19’ PP2 and I’ve also been fighting a misfire issue since tracking mine as well ( over a year ) I always get a check engine light and usually put in limp mode 2-3 times in a weekend. But this past track weekend I had it go into limp mode about 2-3 times a session, very annoying but still managed to pass a Mini Cooper in limp mode I’ve also kept my tank full just to eliminate that as a culprit. Going to have a buddy pull the codes and try a crank relearn and go from there. I had another buddy out there in the same car as me only a year newer and he had no issues. Hoping to get this fixed soon. Car is also on stock tuning.

 

[JeffV8]

I would get codes also. After exploding my engine and building a new one, I had Shaun AED send me a tune. During data logging and sending it to Shaun he would send back to me and say I was really lean at WOT. I then took it to Tim Roadheavers shop and spent 8 hours on his dyno looking for the problem. Fuel pressure at the fuel rail at idel was 60 psi, WOT went to 35 psi. Changed fuel pump still the same. Then we put pressure gauge at pump and stayed at 60 psi but at engine 35 psi. The stock fuel line was restricting fuel flow. Tim made a braided fuel line and solved that problem. He told me he had never seen that before in all the Mustangs he had dyno tuned. It solved my problem and I have not had any codes since.