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P1401 Diagnostic Trouble Code Discussion for January 2007

EGR Temperature Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1401
Help Request Posted
1999 Toyota RAV4 2.0L MIL Lamp on VIN: JT3GP10V1X
P1401: Insufficient EGR Flow. We have a code 1401 for insuffcient EGR flow and replaced the vsv valve and vacuum modulator and still the code comes back after 10 mile drive. We inspected the EGR passage after removing the valve and the passage at the intake is clear. If you manually move t...
January 05, 2007