my friend and i took off my intake manifold to change the injectors.
we succeeded in doing that but now after we put everything back together, the idle is at 1100-1300rpm after warm up. and start up if very hesitant. it takes a few cranks for the car to start.
anyone have any ideas?

kiwon

 

check all your lines, might be a vacuum leak, check ECU codes just to make sure, check MAF, etc.

 

Most definitely a vacuum leak. When I changed injectors I overlooked a red rag that got an edge in between the lower and upper intake manifolds. Same symptoms.