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  1. INFINITI P1491

P1491 / NISSAN

Vacuum Cut Valve Bypass Valve

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P1491 / MOPAR

Rad Fan Control Relay Circuit

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P1491 / JAGUAR

Secondary Switch Solenoid Circuit Malfunction

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P1491 / ISUZU

EGR Valve Lift Insufficient Detected

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P1491 / HONDA

EGR Valve Lift Insufficient Detected

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P1491 / GENERIC

Secondary Switch Solenoid Circuit Malfunction

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P1491 / ACURA

EGR Valve Lift Insufficient Detected

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NOTE: Results from this database are the beginning of the diagnostic process, further investigation should be performed to confirm results before you begin repairs.