Question about 2002 Nissan Frontier Crew Cab

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Sounds like a problem in the egr valve or the porting through the egr valve or maybe a vaccuum line that has something to do with monitoring it. make sure there are no vacuum lines near it that are leaking and is there a difference in the idle that you may notice.

Posted on Feb 26, 2009

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If too much EGR flow exists due to an EGRC-BPT valve malfunction, off idle engine roughness will increase.
If the roughness is large, then the vacuum to the EGR valve is interrupted through the EGRC-solenoid valve.
If the engine roughness is reduced at that time, the EGRC-BPT valve malfunction is indicated.
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0402  The EGRC-BPT valve does not operate properly.  EGRC-BPT valve
 EGR valve
 Loose or disconnected rubber tube
 Blocked rubber tube
 Camshaft position sensor
 Blocked exhaust system
 Mass air flow sensor
 EGRC-solenoid valve

Posted on Jan 17, 2010

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My a/c will not blow cold air.

Posted on Mar 27, 2009

  • glad2bhome9 Mar 27, 2009

    Do you think that I should pay 700.00 to get this fix?


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Had a smog test done got a P0402 code.And had a very bad tune-up changed spark plugs wires filter oil change, plugs stuck, oil was black, could that be the cause of the P0402 code, exhaustive gas flow Please go here for a detailed account of the cause. God-Bless!

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Code p0402 comes up what do I do?

Code 402 means the EGR gas flow is excessive. On Ford products it could be the EGR valve or the sensor. Both components would need to be tested.

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Call dealer. Ask for mechanic. he will tell you.

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2002 Mitsubishi Eclipse Service Engine Soon Light On

codes p0402--p0403deal with exhaust gas recirculation control circuit malfunction as well as the performance of this circuit check connections

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Grand carvan gives p402 code

This is not a cut and dry fault code. This means that more than one thing wrong can set the code in the computers memory. Here is the low down on the P0402 fault code. This is from the OBD2 fault code diagnostic book.

P0402 - Exhaust Gas Recirculation Flow Excessive Detected
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Possible engine hesitation
Possible causes - EGR solenoid valve harness is open or shorted
- EGR solenoid valve circuit poor electrical connection
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U1000 - CAN Communication Line Signal Malfunction

- Harness or connectors (CAN communication line is open or shorted)
- Faulty Engine Control Module (ECM)

- Poor harness ground connection

There is a service bulletin for the following Nissan models with U1000 code:

2002-2006 Nissan Maxima
2004-2006 Nissan Titan
2004-2006 Nissan Armada
2002-2006 Nissan Sentra
2005-2006 Nissan Frontier
2002-2006 Nissan Altima
2005-2006 Nissan Xterra
2005-2006 Nissan Pathfinder
2004-2006 Nissan Quest
2003-2006 Nissan 350Z
2003-2006 Nissan Murano

The service bulletin suggest cleaning engine and body harness ground connection to repair problem.

Feb 14, 2011 | Nissan Versa Cars & Trucks

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