hello 1997 nisan maxima came in shop w/p0400 installed new EGR EGRC-BPT valve,EGR temp sensor,EGRC-Solenoid [...] a smoke test and no [...] left drove 210 mil. and P0400 code came back. when i put the scaners on the car snap-on or I-PRO the engine light is on ...

FIX posted 5/16/2006

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