LEMON Manuals
: Even more car manuals for everyone: 1960-2025
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Volvo
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1992
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940 Turbo, 4D Sedan, AW71
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/O Codes
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Symptoms
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Incorrect Idle Speed
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Incorrect Idle Speed
Check fuel injectors.
Check intake system for leaks.
Check coolant temperature sensor.
Check throttle switch and connector.
Check idle valve. Ensure airflow arrow points in correct direction.
Check distributor.