Supra Liftback L6-2997cc 3.0L DOHC MFI Twin-Turbo (1997)
Idle Speed: Testing and Inspection
1. Initial conditions:
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Engine at normal operating temperature
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Air cleaner installed
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All pipes and hoses of air induction system connected
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All accessories switched OFF
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All vacuum hoses for EGR system, etc. should be properly connected.
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SFI system wiring connectors fully plugged
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Ignition timing set correctly
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Transmission in neutral position
Toyota Hand-Held Tester Connection
2. Connect TOYOTA hand-held tester or OBD II scan tool.
3. Inspect idle speed.
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Race the engine speed at 2,500 rpm for approx. 90 seconds.
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Check the idle speed.
Idle speed: 650 ± 50 rpm
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If the idle speed is not as specified, check the IAC valve.
4. Disconnect TOYOTA hand-held tester or OBD II scan tool.