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Posts Tagged: P0400 Nissan

P0400 Nissan Altima

Fix code P0400 Nissan Altima Exhaust Gas Recirculation Flow Malfunction Owners of 1999 Nissan Altima 2.4L and 2000 Nissan Frontier 2.4L vehicle may encounter a P0400 Nissan Altima with a check engine light. Owners may also notice an engine stall at idle when the vehicle is warm. Before you start replacing parts, learn how the system works and test each component according to this procedure. Start by checking the rubber hose that goes to the bottom of the EGR back pressure transducer. The transducer measures the amount of “backpressure” in the … Read More

P0400 Nissan Altima EGR Malfunction

Fix code P0400 Nissan Altima EGR Malfunction Nissan’s P0400 Nissan Altima EGR Malfunction is similar to other manufacturers. The PCM pulses a solenoid to regulate how much vacuum the EGR valve gets. That determines how far the valve opens. To determine if the valve is actually opening, the PCM looks to the EGR backpressure transducer and the EGR temperature sensor. If you get the P0400 Exhaust Gas Recirculation Flow Malfunction code, first check to make sure the hose to the bottom of the EGR valve is intact and not burned. … Read More

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