Getting a P1109 Secondary Port Throttle System code

[RandyM]

Is this indicating I'm losing a mass air flow sensor?
2009 ACR, Mopar performance ECM, Shelby smooth tubes, Corsa cat back exhaust.

[Steve M]

Put the factory accordion intake tubes back in place and see if the problem persists.

Reason for my guess here: https://www.viperalley.com/threads/smooth-tube-install-issue-issue.163090/

[RandyM]

Thank you, I had heard some info about these, interesting, I have put 300-400 miles on the car with the smooth tubes with no issues till now. I took the MAF sensors out and cleaned them, but they were already spotless.
I'll put the factories back on and try it after it stops raining here.

[Steve M]

Thank you, I had heard some info about these, interesting, I have put 300-400 miles on the car with the smooth tubes with no issues till now. I took the MAF sensors out and cleaned them, but they were already spotless.
I'll put the factories back on and try it after it stops raining here.

I've found that messing with anything upstream of the throttle bodies can result in odd behavior, up to and including limp mode.

It's at least worth trying...it'll hopefully only cost you your time.