Ever seen EGR vacuum line blow off?
Those hoses are not vacume they come from the egr supply tube and they are measuring the differance in exust pressure the little box they connect to is called the delta PFE. I would be checking the exaust for excessive backpressure if these are blowing off. Possable pluged exaust or partialy pluged converter. thos hoses blown off should not have an imediate effect on performance they will in time put on che check engine lt.


