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 code often …

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 was …

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 let it sit for …

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 Sensor). I …

Feb 25, 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 all-the …

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 and hold …

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 black carbon. …

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 able to get the …

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 throwing the …