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Hi folks, installed a Vararam Powerduct today, took the car for a short drive and checked codes. I don't believe these are related to the new airbridge and B2 intake but though I would check.
HVAC - B0441 and B0446 H&C - Code list says this is the left and right actuators out of range. AC is working so not sure what this means.
RFA U1096,U1064,U1016 - These are defined in the code list as Normal Software Function, history status upon ignition recycling.
If the car is an early year car (97 -2000) ( no info in your post or profile) the RFA for those years seem to acquire those codes more so than the later year cars.
If your key FOB's are functioning and the TPM's are reporting pressures in the DIC, I would just clear the codes and not worry if they reoccur.
Yes it is an early C5 ( 2000). Thanks for the info. I had cleared all codes and went for a ride, the RFA codes did not come back, I used the AC with the auto function and it seemed to work fine but the codes came back. I will try the procedure in the post you provided. Thanks.