P0400 2009 FORD FUSION – Exhaust Gas Recirculation Flow

 

P0400: DIY Repairing Video Tutorial

https://youtu.be/z672j4QN46o

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0400 2009 FORD FUSION Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light),Possible engine hesitation  

P0400 2009 FORD FUSION Possible Causes

  Exhaust Gas Recirculation (EGR) volume control valve stuck closed,Faulty Exhaust Gas Recirculation (EGR) volume control solenoid valve,Faulty EGR Valve,Faulty EGR temperature sensor and circuit,Exhaust Gas Recirculation (EGR) solenoid valve harness is open or shorted,Exhaust Gas Recirculation (EGR) solenoid valve circuit poor electrical connection,Dead (Weak) battery  

P0400 2009 FORD FUSION Description

  The electric EGR (EEGR) system is monitored once per drive cycle at high and low load conditions. The test fails when a concern is detected by powertrain control module (PCM) calculations indicating the EGR flow is less or greater than expected.