Diehl927

Alright I'll just start at the beginning, trac light was flashing and engine light was on, had little to no breaks, the car would come to a rolling stop with the. Pedal completely compressed. Turned out to be a vacuum leak, replaced the pcv hose(no with a oem part) and a hose leading up to the evap sensor. The trac light turned off along with the engine light. Thought It was fixed but then the car would idle at 750-800 on a cold start which is normal , but once it warmed up the Rpms would continue to go down until the car just died unless I fed it has then it would stay running but as soon as I stopped would die, so I took it to a shop. they ran a test and told me I had variable valve timing blockage, so I flushed the hell out of the engine with detergents and changed the oil, still having that same problem but now the breaks are hard, not sure what to do, any advice would be much apprieciated btw car is not throwing any codes up at the moment