I have a 2003 F350 WITH A 7.3 L. I have installed a AEM Fresh air intake and am running a super chips chip currently the 90 hp option. My son and I installed a 4" exhaust today and a EGT gauge. While my son was on his test drive the check engine light came on for about a minute, then went off. We checked the error codes which were PO113 "Intake air temp circuit high input" & PO238 "Turbo boost sensor A circuit high input". Anyone out there know what these mean.