so how would you be able to find a vaccum leak? because i guess i have a really huge one since my car won't idle.https://www.rx7club.com/newthread.ph...ewthread&f=17#
Frown

 

Search and read. The answer is found in many threads that discus different approaches to tracking down vacuum leaks. You can take your pick on which ones to try.

 

Start with all the obvious...each vacuum line should not be worn, brittle or cracked. It should fit snugly at each end. With the engine running (get an assistant to keep it running at a constant rpm if it won't idle by itself) spray carb cleaner around the mating surfaces at the throttle body, UIM and LIM. If the idle speed changes, then you've found a vac leak. The injector grommets also get worn out and brittle over time and can cause vac leaks.