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Nissan-Datsun
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1991
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Sentra SE-R
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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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Poor DRIVEABILITY
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Detonation
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Poor DRIVEABILITY: Detonation
Ensure there are no vacuum leaks into intake system.
Check EGR control valve operation.
Check EGR control valve solenoid operation.
Check spark plug for improper gap or fouling.