Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2005CELICA GT-S, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSSFI SYSTEMTHROTTLE BODY (1ZZ-FE)INSPECTION
2005 Toyota Celica GT-S, Standard
Throttle Body (1ZZ-FE): Inspection
2005 Toyota Celica GT-S, StandardSECTION Inspection
- INSPECT THROTTLE VALVE
Check that there is no clearance between the throttle stop screw and throttle lever when the closed throttle position.
- INSPECT THROTTLE POSITION SENSOR
Using an ohmmeter, measure the resistance between each terminal.
THROTTLE POSITION SENSOR TERMINALS RESISTANCEClearance between lever and stop screw Between terminals Resistance 0 mm (0 in.) VTA - E2 0.2 - 5.7 kΩ Throttle valve fully open VTA - E2 2.0 - 10.2 kΩ - VC - E2 2.5 - 5.9 kΩ
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.