05 acura tl I'm having a ruff idle at at stop in drive i just replaced rear motor mount and put the vacuumline on the bottom of the mount I'm lost

 

Check the brake booster vacuum hose.

 

Inspect the vacuum hoses and you can also spray carb cleaner on the hoses with the engine at idle and if/when
the idle changes, you've found the leak.

 

im not sure where it is i think it is one of the metal line that comes off the master cylinder and runs to a box in the front right of the car they seem fine all my vacuum line are hooked up and seem okay maybe the motor mount vacuum came loose ill have to check again thanks