Feb 2, 2008 · I have a 2000 Altima that recently threw a P0400 code (EGR Flow Malfunction). I've had some trouble figuring out what the problem is. I looked around and found that the P0400 …

Apr 13, 2005 · so i threw a P0400 sode (Exhaust Gas Recirculation Flow Malfunction) should I just replace the EGR?

Jul 30, 2006 · I OBD scanned my car 2 weeks ago. it pulled up that i have an code P0400: EGR Flow Malfunction. i went to a mechanic to get an opinion. he told me it was the EGR valve that …

Nov 17, 2008 · I recently did an intake manifold gasket repair for a P0304 (cylinder 4 misfire). I put it all back together and now I am getting a P0400 (insufficient egr flow) and a P0325 (Knock …

Oct 25, 2009 · I've been getting both the P0400 & the P0325 code at the same time, my dad swapped out the EGR valve today, and i reset the code. I drove it around, then shut off the car …

Feb 24, 2010 · Hi, I have a 97 Altima and have had the SES light come on with codes P0400 and P0325 twice, once after being cleared. I checked that the EGR valve holds vacuum-no leak at …

Mar 29, 2010 · I'm currently in the process of diagnosing the reason behind the P0400 code my ECM keeps throwing. I've checked the obvious vacuum hoses, all seem to be in fair condition …

Aug 6, 2011 · Got 2 codes: P0400 and P0325(knock sensor). After searching the forum, I went and pulled out the EGR sensor that's closest to the firewall and found that it was caked in …

Mar 25, 2008 · We have a '97 Altima with a 2.4 engine which had codes P0400 and P0325 and where told to replace the egr vavle and knock sensor. We replaced the egr valve and where …

Aug 28, 2020 · Okay so my Nissan Altima 2.5 s is throwing two code p0400 and p0401 but I can’t figure it out as far as I know it doesn’t have egr valve and I replaced the pvc valve and still …