[Toppy986]

I chased these same codes 1124 and 1126 for over 6 months, looking for an air leak, cleaned MAF sensor, changed AOS, clearing codes after each attempt, only to have them return. my problem was I never let the system completely reset, the evap system is I believe the last one, it wasn't until i was about to give up, that the evap system reset and i got a new code. turned out I had a bad evap purge valve, sticking open causing my vacume leak, this would not have shown up with a smoke test, or propane. changed the valve, and have been code free for over 2 years. Have you let the system completely reset all systems?