PO401 indicates an abnormal EGR flow.
exhaust gas recirculation flow insuficient
exhaust gas recirculation flow insuffcent detected
2001 ford windstar has code PO401 erg insufficent flow.
Trouble code P0401 means:Exhaust gas recirculation-insufficient flow detected
after washing my car i had a engine light the code was 403 exhaust recirculation control circuit malfunction can you help thanks
You lucked out-it's just a bad egr valve.
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Generic codes P0440 Evaporative emission system malfunction P0401 Exhaust gas recirculation system Insufficient flow detected.
Trouble code P0401 means: Exhaust Gas Recirculation Flow Insufficient Detected replace the EGR valve Trouble code P0446 means: Evaporative Emission System Vent Control Circuit
yo cant
Yo can not "change" an engine code. You need to repair what is causing the code.Yo can not "change" an engine code. You need to repair what is causing the code.