Code p0403

2008 NISSAN PATHFINDER
113,000 MILES • 2.5L • 3 CYL • TURBO • 4WD • MANUAL
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SCRAGGY29
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Had fault codes that say the EGR valve is faulty, so I replaced this with another one it wasn’t genuine so maybe that is faulty as well but same code? Any ideas? Could both EGR valves be faulty? I know these cheaper ones aren’t great? I can clear code but then after a while it’s back, wanted see if could try something else before ordering replacement EGR. thanks in advance.
Feb 25, 2021 at 8:04 AM
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ASEMASTER6371
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Good morning,

What is the code number?

Yes, some of the aftermarkets do not work as well as the OEM valves.

https://www.2carpros.com/articles/how-emission-control-systems-work

I attached a YouTube video from us about how the valve works and testing it.

https://www.youtube.com/watch?v=DqUCbbKdWf4

Roy
Feb 25, 2021 at 8:18 AM
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SCRAGGY29
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Thank you. so if a faulty valve would through the code out? Maybe it wasn’t good at all and replaced with a dud valve?
Feb 25, 2021 at 8:56 AM
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ASEMASTER6371
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Yes it is possible. I would get a new one from the dealer.

Roy
Feb 25, 2021 at 9:02 AM