91parkave

iTrader: (1)

I pulled both codes for a hi/lo flow on EGR and a rear 02 code, i just replaced my plugs, all coils are up to par, has anyone had this problem? any suggestions?

KiNgJaMEs

iTrader: (12)

my EGR and my rear O2 are both out on my car too thats weird you have the same prob. I looking for an answer also
ANYONE?

91parkave

iTrader: (1)

damn, yea this is also on a fresh set of 02 sensors i replaced both with new bosch direct fits in december, cant figure out why every 300 miles it will trip a rear 02 code?? ill try cleaning out the EGR and see if that helps but i cant see one affecting the other

njmaxseltd

iTrader: (19)

The rear O2 monitors the catylist efficiency. If the sensor is OK, wiring checks out good, then your cat is no longer functioning as it should be.

91parkave

iTrader: (1)

When i say rear i mean the bank 2 o2 sensor. not the rear catalytic converter sensor

f550maranello2

iTrader: (2)

dude u need to clean the egr tube.. its probably solid like on most maximas...

titanbk

iTrader: (3)

anybody got a write-up on cleaning the egr tube? I also need to do mine.

Snypa

iTrader: (35)

^^^^ should be in that sticky-***-place.

titanbk

iTrader: (3)

ya I looked but couldnt find anything about it.

pmohr

iTrader: (26)

B2S1? The EGR system shouldn't affect that O2 at all (re: CELs). The codes for that sensor are purely to see if it's working, nothing to do with what it sees.

Search for cleaning the EGR, there are a bunch of threads on it. Ex: http://forums.maxima.org/showthread.php?t=219204

91parkave

iTrader: (1)

Yea B2s1, ive reset the computer twice now and in about 200-300 miles both codes will pop up. I was curious if one would cause another, perhaps it was a high flow situation it would cause inaccurate o2 readings since it pulls gas from the rear exaust manifold in theory. I wont know for sure till i clean out the EGR and go from there, Thanks for the reply advice though.

will do, preciate it guys, ill report back and see if this fixes both codes