what are the codes for ford 350 8 cylinder engine

Question

i recently bought this tester to check my truck the code came up PO488 WHAT DOES THIS MEAN

Answer 1

P0488 Exhaust gas recirculation (EGR) throttle control circuit "A" range / perfromance

The only fix when this code is set is replace the intake throttle actuator, the intake throttle take in charge air into the EGR mixing elbow.and when this code set it mostly when the throttle plate is out of range. You would need this sensor to perfrom a regeneration .