Computer problem
2004 Ford F350 V8 Four Wheel Drive Automatic 66,000 miles
i have a 2004 f350 power stroke 6.0 and im getting 2 troulble codes what do i need to change to fix this problem the codes are p0488 and it says egr throt pos cont range/perf the other code is p1334 and it says egr throt poss sens min stop/perf the truck still runs good no problems but the dash light comes on in till i clear the code please help thanks dan