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Toyota
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1991
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Corolla Base, Automatic
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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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Engine Stalls Sometimes
Engine Stalls Sometimes
Check airflow meter and connectors.
Check EFI main relay, circuit opening relay and connectors. Check for slight change in engine idle when connector or relay are slightly tapped or wiggled.