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Any specific type of driving you would like in the log? Sent from my iPhone using Tapatalk

Completely stock Sent from my iPhone using Tapatalk

My guess is that they developed their tune on a 2020 ST. Sent from my iPhone using Tapatalk

I think they just have a general OTS tune for all ST’s. This is exactly what I told the lady that answered their support line the first time and I got a very general response of “uninstall the tune and drive for a week to see if the codes come back”. They didn’t. Then I loaded the tune and the...

Thanks for the info. I’ll try and find that in my engine bay. I know ford made a few changes to the ST’s throughout the first few years. That was the first thing I thought about with the check engine light because mine doesn’t have the factory bypass valve. Sent from my iPhone using Tapatalk

Is that the short black hose on the passenger side from the intake manifold with blue clips? If so, no sensor. Sent from my iPhone using Tapatalk

He won’t tune for me until I get the check engine lights checked out because he believe there has to be a mechanical issue. I tried that and no issues were found by ford. The codes don’t exist when the tune is uninstalled. Not sure what I’m supposed to do. The car runs great with the tune...

Also yes, I ran all the firmware updates. Sent from my iPhone using Tapatalk

I talked to them multiple times. They told me to uninstall the AP and drive for a few days. I will be calling them tomorrow again now that I did what they asked and have the same issue. I am running the 93 tune. I also tested it on the 91 tune with the same issue. Sent from my iPhone using...

Leaning that way Sent from my iPhone using Tapatalk

Update on this. I uninstalled the accessport for all of last week and drove about 700 miles with no codes. I reinstalled the tune yesterday and the codes immediately came back. So the tune is what is causing the codes. Any thoughts on this? Sent from my iPhone using Tapatalk

Hard to believe it’s that big of a coincidence that it happened as soon as I loaded the tune.

Thanks! And thank you for your service(s)! @Blue Beast

Hi All, New to the forum but I have done my research and do not see a threat on this. I installed the Cobb accessport on my 2021 ST. It drives great but it keeps popping 2 codes. The first is P0035 (turbocharger/supercharger bypass valve A control circuit high) and second is P2418 (EVAP system...