This page is a walkthrough for the assignment, Combustion Manifold. It’ll navigate you through the necessary steps to finding the Combustion Manifold.
Collect the Combustion Manifold
This mission can be initiated by picking up the Combustion Manifold item from a flipped vehicle in Mordin’s loyalty mission - Mordin: Old Blood (see the walkthrough page for the exact location).
To complete the mission, you will need to turn in the Combustion Manifold to the mechanic working on the APC near the Krogan clinic after completing the Old Blood mission. Doing so will complete the task.