Civic Sedan L4-1493cc 1.5L SOHC (D15B2) TBI (1989)
Throttle Body Assembly
2. Remove air intake chamber.
3. Remove throttle cable.
4. Remove all electrical connectors.
5. Remove all vacuum and fuel hoses.
NOTE: Place a rag or shop towel over the hoses before disconnecting them.
6. Remove the four throttle body retainer nuts.
7. remove throttle body, place a rag over the intake manifold.
8. Inspect insulator, replaced if cracked or broken.
9. Reverse procedure to install, replacing both the O-ring and the base gasket.
10. Torque throttle body retainer nuts to 16 lb-ft (22 Nm).