Air Compressor - Removal Engine Disassembly (00-01) N14 Page 0-30 STC Engines Remove the fuel tubing and AFC air signal line: Gear pump cooling drain (1) Fuel supply line (2) Fuel rail pressure line (3) AFC air signal line (4) Tachometer cable (if equipped) (5) Fuel pressure sensing line (to STC valve) (6) Throttle switch (if equipped) (not shown) Remove the four capscrews and the fuel pump. Remove the spider coupling. Air Compressor - Removal Disconnect the air supply line from the air compressor to the intake manifold. Remove the four capscrews, the air compressor, and the splined coupling.