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P1402 Nissan

P1402 Nissan - EGR Function Open

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P1402 Nissan Comments |  Add Comment
Possible 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
Help with Possible causes What does this mean?
Tech notes
Start by cleaning the EGR valve, if the code persist it may be necessary to replaced the EGR Valve.

There is a factory service bulletin for the following Nissan Models:

2004-2005 Nissan Maxima
2004-2005 Nissan Quest
2005 Nissan Altima
Nissan Factory Service Bulletin OBDII Code P1402
Help with Tech Notes What does this mean?
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1402 Nissan 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

OBDII Code P1402 Nissan - EGR Function Open
P1402 Nissan Information for specific Nissan models
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NISSAN Technical Service Bulletins for P1402 code
2004 NISSAN MAXIMA Engine And Engine Cooling:exhaust System:emission Control:gas Recirculation Valve (egr Valve) Details
2004 NISSAN QUEST Engine And Engine Cooling:exhaust System:emission Control:gas Recirculation Valve (egr Valve) Details
2005 NISSAN ALTIMA Engine And Engine Cooling:exhaust System:emission Control:gas Recirculation Valve (egr Valve) Details
2005 NISSAN MAXIMA Engine And Engine Cooling:exhaust System:emission Control:gas Recirculation Valve (egr Valve) Details
2005 NISSAN QUEST Engine And Engine Cooling:exhaust System:emission Control:gas Recirculation Valve (egr Valve) Details
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