new code P0402

[ThatShoGuy]

P0402 Exhaust Gas Recirculation Flow Excessive Detected

how to fix this one?

think its related to my evap codes?

455
443

thanks


ive been searching and using my service manual and cant seem to find info on it yet besides P0402 Exhaust Gas Recirculation Flow Excessive Detected

 

[SHOZ123]

Probably the DPFE sensor. Common problem.

 

[ThatShoGuy]

Probably the DPFE sensor. Common problem.

thank you i do have another i will switch it out and see if it fixs it...

 

[ThatShoGuy]

thank you i do have another i will switch it out and see if it fixs it...

changed out the dpfe sensor still getting a code of p0402 were else to look thanks..

 

[SHOZ123]

Diagnostic Trouble Code (DTC) P0402 indicates that Self-Test has detected EGR flow at idle.

Note: If DTC P1405 is in Continuous Memory, diagnose that first starting with HE50.

Possible causes:

EGR valve stuck open.
EGR vacuum regulator solenoid vent plugged or iced.
EVR circuit shorted to GND.
EVR circuit shorted to VREF.
Improper vacuum hose connection.
Plugged/pinched EGR Vacuum Regulator Solenoid vacuum hose.
Plugged EGR tube.
Damaged EGR Vacuum Regulator Solenoid solenoid.
Pinched/iced pressure hoses.
Damaged Differential Pressure Feedback EGR (D.P.F. EGR) sensor.
Damaged PCM.

 

[ThatShoGuy]

Diagnostic Trouble Code (DTC) P0402 indicates that Self-Test has detected EGR flow at idle.

Note: If DTC P1405 is in Continuous Memory, diagnose that first starting with HE50.

Possible causes:

EGR valve stuck open.
EGR vacuum regulator solenoid vent plugged or iced.
EVR circuit shorted to GND.
EVR circuit shorted to VREF.
Improper vacuum hose connection.
Plugged/pinched EGR Vacuum Regulator Solenoid vacuum hose.
Plugged EGR tube.
Damaged EGR Vacuum Regulator Solenoid solenoid.
Pinched/iced pressure hoses.
Damaged Differential Pressure Feedback EGR (D.P.F. EGR) sensor.
Damaged PCM.

thanks sho123 you always help me, your gonna have to teach me how to use this service manual better. that way i can figure i out my self. lol