My truck has been throwing a code P061C. I am trying to avoid going to the dealer, none around that know anything about these trucks.
As per All Data I have replaced a Crank Position Sensor. Didn't help. Got a replacement ECM from H&S, still same. Is there anything else that I am missing.
The code showed up after initial download of XRT. Have nothing bad to say about H&S, but can a Smarty correct this problem.

 

P-061c-ETC Level 2 RPM Performance

 

Thats a derate code. Did the XRT do anything with rev limiting?

 

The truck does not derate, fast as ever. No rev limit adjust, but they probably do a custom tune.
Funny thing is the code goes away every 5-6th cycle for 2 cycles and then comes back.