Intake manifold

Just move components that are in the way such wire harnesses, or fuel lines. Drain the coolant. There may be coolant hoses that need to be removed from the throttle body. Unbolt all necessary components like the fuel rail and pop out the injectors from the manifold (not the fuel rail. leave them on the rail. May need to replace the injector o-rings). Clean the manifold mating surface. Install new gaskets. When torquing down the bolts on the manifold. Start at the corners and work your way in at a criss-cross pattern (torque to 15ft-lbs). Then just put everything back like you found it.

Here is a guide and diagrams below to show you what you are in for when doing the job.

https://www.2carpros.com/articles/replace-intake-manifold-gasket

Check out the diagrams below to show step by step you how to do the job on your car.

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Cheers