› blog › p2006-code-intake-manifoldP2006 Code: Intake Manifold Runner Control Stuck Closed (Bank 1) Sep 08, 2021 · In the late ‘80s Ford Taurus SHO engines (Mitsubishi design), the intake manifold runner controls would change the length of the manifold runner using butterfly valves. Image source: Wikimedia . This strategy has been used on smaller, less high performance engines as well, but IMRC on later models tends to operate differently, with the ...