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Home >> Toyota >> 1995 >> T100 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 3.4L >> Diagnostic Testing >> Code P0402 - Excessive Exhaust Gas RECIRCULATION (EGR) Flow Detected >> Circuit Description
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Circuit Description

See CODE P0401  - INSUFFICIENT EXHAUST GAS RECIRCULATION (EGR) FLOW DETECTED. Code is set when EGR gas temperature sensor value is high. Engine not yet at normal operating temperature. Possible causes are:

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