What is obd code. P1406 on 2001 ford e-150

Asked by Apr 10, 2014 at 12:01 PM about the 2001 Ford E-Series Cargo E-150

Question type: Maintenance & Repair

1 Answer

25,315

The DPFE sensor is not detecting upstream or down stream pressure. Check the 2 Silicone hoses connected to the DPFE. If you haven't modified the exhaust system and the hoses are connected, it's likely that the sensor has failed. Not uncommon providing that this sensor gets hot exhaust pumped to it continually. DPFE - measures the amount of exhaust back- pressure to monitor the EGR's performance. With this code in place, your mileage and power will be reduced - although not a lot.

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