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Home >> Suzuki >> 1993 >> Samurai JL >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System >> Throttle Body (TBI) >> Overhaul (All Models)

Overhaul (All Models)

  1. Remove fuel injector from throttle body. See INJECTOR (TBI)  under FUEL SYSTEM.
  2. Remove throttle position sensor, Engine Coolant Temperature (ECT) sensor (Swift SOHC), fuel pressure regulator (Samurai and Sidekick TBI) and Idle Air Control (IAC) valve (Sidekick TBI) from throttle body. See Fig 1 or Fig 2 . Remove attaching screws and separate upper and lower bodies.
  3. 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. Reassemble components with NEW gaskets and "O" rings.
  4. Assemble upper and lower bodies with NEW gasket. Install and tighten upper-to-lower body attaching screws to specification. See TORQUE SPECIFICATIONS  table.
  5. On Samurai and Sidekick TBI, install fuel pressure regulator with NEW "O" ring. Tighten fuel pressure regulator mounting screws to specification. On Sidekick TBI, install IAC valve with NEW gasket. Tighten IAC mounting screws to specification.
  6. On Swift SOHC, install ECT sensor. Tighten sensor to specification. On all models, install fuel injector. See INJECTOR (TBI)  . Apply thread locking compound to injector cover mounting screws and install cover. Tighten injector cover screws to specification.
  7. Install TPS so adjusting holes slightly cover mounting bolt holes. See Fig 3 . Turn sensor so mounting holes align. Install sensor mounting bolts (finger tight). Clamp wiring harness securely to side of throttle body.
Fig 1: Exploded View Of Throttle Body (Samurai & Sidekick TBI)
G91G17414Courtesy of SUZUKI OF AMERICA CORP.
Fig 2: Exploded View Of Throttle Body (Swift SOHC)
G93B80482Courtesy of SUZUKI OF AMERICA CORP.
Fig 3: Aligning Throttle Position Sensor (Samurai, Sidekick TBI & Swift SOHC)
G119659Courtesy of SUZUKI OF AMERICA CORP.