Throttle Body (TBI): Overhaul
- Remove fuel injector from throttle body. See INJECTOR (TBI) under FUEL SYSTEM.
- Remove throttle position sensor, fuel pressure regulator (TBI) and idle speed control solenoid valve from throttle body. See Fig 2
. Remove attaching screws and separate upper and lower bodies.
- DO NOT
soak any electrical device or air valve in solvent or other cleaner. DO NOT
put drills or wires into passages. Clean upper and lower passages with compressed air only. Reassembly components with new gaskets and "O" rings.
- Assemble upper and lower bodies with new gasket. On TBI, install and tighten upper-to-lower body attaching screws to 31 INCH lbs. (3.5 N.m).
- Install fuel pressure regulator with new "O" ring. Tighten fuel pressure regulator mounting screws to 31 INCH lbs. (3.5 N.m).
- On TBI, install idle speed control solenoid valve with new gasket. Tighten idle speed control solenoid mounting valve screws to 31 INCH lbs. (3.5 N.m).
- Install fuel injector. See INJECTOR (TBI). Apply thread locking compound to injector cover mounting screws and install cover.
- Tighten injector cover screws to 17 INCH lbs. (1.9 N.m).
Courtesy of SUZUKI OF AMERICA CORP.
- On TBI, install throttle position sensor so adjusting holes slightly cover mounting bolt holes. See Fig 1
. Turn sensor so mounting holes align.
- On all models, install sensor mounting bolts (finger tighten only). Clamp wiring harness securely to side of throttle body.
Courtesy of SUZUKI OF AMERICA CORP.