- posted
16 years ago
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?