engine power reduced

the right way to diag this is to document the codes and freeze frame, clear the codes and drive. the first code to return is the code to diag first. sounds unlikely that all those problems failed at the same time. there is a common denominator there somewhere. thats why the real diag is crutial. time and material is the price. could be 1 hour, could be 5 hours, depends on the ability of the tech. Roy by the way, the c codes are abs codes. that is a different system with separate diags.

I had trottle body and mas-air-flow put on, and I steel have the same problem, what's up?