*Usually* it is the DPFE senor.... but the parts stores like to sell
everything else in the system first...


"timmerhyll" <u38579@uwe> wrote in message news:7a3dc7f70949d@uwe...
> 96 Explorer 4.0, V6 Auto, 4WD - has error code 401. Replaced EGR Valve,
> had
> code cleared, then reappeared after about 30 mi. What else could be
> causing
> the error code, or could the EGR valve replacement be defective? Not very
> knowledgeable, and short on funds, but need to get this cleared. Could it
> be
> a sensor? If so, where is it?
>