2002 Buick Regal Air Filter

You need to remove the fuel injector sight shield, disconnect the MAP Sensor electrical connector, carefully release the locking tabs holding the MAP sensor to the PCV valve cover, and pull the MAP sensor straight out of the PCV valve cover.

You need to remove the upper Intake Manifold, the generator brace, the drive belt tensioner, the heater water bypass inlet pipe, the EGR outlet pipe, and the radiator inlet hose, disconnect the ECT sensor electrical connector, remove the generator brace bracket bolts, the generator brace bracket, the evaporative emissions canister purge solenoid valve, the lower intake manifold bolts, the lower intake manifold, the lower intake manifold seals and the lower intake manifold gaskets, and clean the lower intake manifold mating surfaces and the intake manifold bolts and bolt holes of the adhesive compound.

You should not route flexible components (hoses, wires, conduits, etc.) within 50 mm (2 in) of moving parts unless flexible components can be securely fastened.