What are the Possible Causes of the DTC P1402 2005 Nissan Altima Sedan?
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
Faulty EGR temperature sensor
EGR volume control valve harness is open or shorted
EGR volume control valve circuit poor electrical connection
EGR volume control valve leaking or stuck open
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How to Fix the DTC P1402 2005 Nissan Altima Sedan?
Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
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What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1402 2005 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.
What are Code Possible Symptoms?
Engine Light ON (or Service Engine Soon Warning Light)
Code P1402 2005 Nissan Altima Sedan Description
This system controls flow rate of Exhaust Gas Recirculation (EGR) led from exhaust manifold to intake manifold. The opening of the EGR by-pass passage in the EGR volume control valve changes to control the flow rate. A built-in step motor moves the valve in steps corresponding to the Engine Control Module (ECM) output pulses. The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is determined by considering various engine conditions. The EGR volume control valve remains closed under the following conditions.
- Engine stopped
- Engine starting
- Engine idling
- Low engine coolant temperature
- Excessively high engine coolant temperature
- High engine speed
- Wide open throttle
- Low battery voltage
P1402 2005 Nissan Altima Sedan Code - EGR Function Open
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