how do you change +or clean the egr? on 1997 Nissan Maxima

failed emissions - cdes p0400+p0300+p0443

by in Peoria, AZ on October 11, 2012
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2 answers
ANSWER by , October 11, 2012
there is lot more to the egr code, 400 than just replacing the valve. you need to have it checked to verify. there is a lot more than the valve in the egr system 300 is a random missfire 443 is an evap code. Roy
ANSWER by , October 12, 2012
i agree with mastertech. the egr could be causing code po300 but not the evap,seek a proper diag and est as to not waste time and $