P0402 2012 FORD FUSION – Exhaust Gas Recirculation Flow Excessive Detected

 

P0402: DIY Repairing Video Tutorial

https://youtu.be/57B5b9uANus

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

 

P0402 2012 FORD FUSION Possible Symptoms

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

P0402 2012 FORD FUSION Possible Causes

  EGR volume control valve stuck open,Faulty EGR volume control valve,EGR solenoid valve harness is open or shorted,EGR solenoid valve circuit poor electrical connection,Faulty EGR temperature sensor and circuit  

P0402 2012 FORD FUSION Description

  The EGR system is monitored for undesired EGR flow during idle. The EGR monitor looks at the differential pressure feedback EGR (DPFE) signal at idle and compares it to the stored signal measured during ignition on engine off. The test does not pass when the signal at idle is greater than at ignition on engine off by a calibrated amount.