P0401 code yesterday while driving, cleared this AM

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Jun 6, 2011 | 10:46 AM

Misky6.0

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Joined: Oct 2010

Posts: 5,420

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From: Ouray, CO

P0401 code yesterday while driving, cleared this AM

I drove from NC to FL yesterday, I stopped @ a rest area for
a few minutes and the code came on about 5 minutes after
I got back on the highway. I had also filled up 2 hours earlier.

P0401: low flow EGR valve
It was 99* and the ECT/EOT was: 197/211 @ 73MPH.

I cleared the code last night when I parked and it stayed gone
this AM driving to work.

The PO had the EGR valve replaced in '06 and '07 (from oasis report).

I will have to pull and clean/inspect the EGR value.
I have BPD EGR/oil coolers so there is no intended block off.
Could this just be a fluke? or a sign of the EGR valve going bad?
Something else?

Thanks.

Jun 6, 2011 | 11:15 AM

william_04_x

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Joined: Nov 2007

Posts: 5,139

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I wouldn't worry about it unless it starts coming back more frequently. P0401 doesn't always indicate a problem with your EGR valve. It can be a glitch with another sensor.