po401 code replaced all sensors and egr valve? check engine light come back on after 45 miles what else can it be?
Feb 1, 2013 at 11:54 AM
1998 Ford 500 Po401 Code Replaced Sensors Egr Valve Check Engine Light Come
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P0401 – Exhaust Gas Recirculation Flow Insufficient Detected
Fault codes never say to replace parts. They only indicate the circuit or system that needs further diagnosis. Probably the most common cause of low flow is a passage plugged with carbon.
Fault codes never say to replace parts. They only indicate the circuit or system that needs further diagnosis. Probably the most common cause of low flow is a passage plugged with carbon.
Feb 1, 2013 at 1:22 PM
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