is all this basicly the same problem code po101 po174 po507

Question

Need help please. Are all these codes basically come back to the mass air senator bad ? The cat converter is rattling real bad bad also or could that be the problem?

Answer 1

P0101 MAF circuit / range perfromance

P0174 Fuel trim lean Bank 2

P0507 Idle air control system high than expected

The catalytic convertor if it was plugged you would code a P0101 this would be due to it being unalbe to perform. Look for a vacuum leak that causing fuel trim to go lean and the idle air control to be higher in its step than it should be