ISX 871 525hp No throttle response

[in2trux]

You probably need to replace the cc pressure sensor as well as the filter. The ambient air temp sensor not registering is a major problem as far as the ecm/ emissions and I could see that shutting you down.
Mine is located in the driver side mirror, best get with KW and your VIN to locate it.

EGR full of coolant is another problem that needs to be addressed especially if emissions system is still intact. The system is temperamental enough without neglect.
I see an egr cooler in your near future.

Dont even consider any other option than mm unless you want real problems!

You have your work cut out for you if you want to keep running it.