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SVT Shelby GT500
EGR dtc
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<blockquote data-quote="hotcobra03" data-source="post: 16424305" data-attributes="member: 53096"><p>P0401 - Exhaust Gas Recirculation (EGR) Flow Insufficient Detected</p><p></p><p></p><p> </p><p>Description: The EGR system is monitored during steady state driving conditions while the EGR is commanded on. The test fails when the signal from the differential pressure feedback EGR sensor indicates that EGR flow is less than the desired minimum.</p><p>Possible Causes:</p><ul> <li data-xf-list-type="ul">Vacuum supply<br /> <br /> </li> <li data-xf-list-type="ul">EGR valve stuck closed<br /> <br /> </li> <li data-xf-list-type="ul">EGR valve leaks vacuum<br /> <br /> </li> <li data-xf-list-type="ul">EGR flow path restricted<br /> <br /> </li> <li data-xf-list-type="ul">EVR circuit short to voltage<br /> <br /> </li> <li data-xf-list-type="ul">VREF open to differential pressure feedback EGR sensor<br /> <br /> </li> <li data-xf-list-type="ul">Differential pressure feedback EGR sensor downstream hose is off or plugged<br /> <br /> </li> <li data-xf-list-type="ul">EVR circuit open<br /> <br /> </li> <li data-xf-list-type="ul">VPWR open to EGR vacuum regulator solenoid<br /> <br /> </li> <li data-xf-list-type="ul">Differential pressure feedback EGR sensor hoses are both off<br /> <br /> </li> <li data-xf-list-type="ul">Differential pressure feedback EGR sensor hoses are reversed<br /> <br /> </li> <li data-xf-list-type="ul">Damaged EGR orifice tube<br /> <br /> </li> <li data-xf-list-type="ul">Damaged EGR vacuum regulator solenoid<br /> <br /> <br /> <br /> </li> </ul></blockquote><p></p>
[QUOTE="hotcobra03, post: 16424305, member: 53096"] P0401 - Exhaust Gas Recirculation (EGR) Flow Insufficient Detected Description: The EGR system is monitored during steady state driving conditions while the EGR is commanded on. The test fails when the signal from the differential pressure feedback EGR sensor indicates that EGR flow is less than the desired minimum. Possible Causes: [LIST] [*]Vacuum supply [*]EGR valve stuck closed [*]EGR valve leaks vacuum [*]EGR flow path restricted [*]EVR circuit short to voltage [*]VREF open to differential pressure feedback EGR sensor [*]Differential pressure feedback EGR sensor downstream hose is off or plugged [*]EVR circuit open [*]VPWR open to EGR vacuum regulator solenoid [*]Differential pressure feedback EGR sensor hoses are both off [*]Differential pressure feedback EGR sensor hoses are reversed [*]Damaged EGR orifice tube [*]Damaged EGR vacuum regulator solenoid [/LIST] [/QUOTE]
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