System for a self-aligning exhaust sensor joint

A system, comprising:

• an engine, including a plurality of cylinders;
• an intake manifold coupled to the engine for supplying air to the plurality of cylinders;
• an exhaust system, including an exhaust manifold coupled to the engine and an exhaust passage coupled to the exhaust manifold;
• and
• an exhaust pressure sensor coupled to the exhaust passage via an exhaust sensor joint, the exhaust sensor joint including a tapered pipe, a nut assembly having a tapered axial bore, a direction of taper of the tapered axial bore opposite that of a direction of taper of the tapered pipe, and a boss having a threaded inner cavity adapted to receive the nut assembly.

A method, comprising:

• combusting an air/fuel mixture in cylinders of an engine;
• flowing combustion exhaust from the cylinders to an exhaust passage fluidly coupled to the engine;
• and
• measuring a pressure of the combustion exhaust with an exhaust pressure sensor coupled to the exhaust passage via an exhaust sensor joint, the exhaust sensor joint including a boss fixedly coupled to the exhaust passage and a tapered pipe secured to the boss by a nut assembly positioned around the tapered pipe, the nut assembly including a tapered inner cavity therethrough that has a direction of taper opposite that of a direction of taper of the tapered pipe.