# 2005 Ford Taurus X - I have a 1406

**URL:** <https://community.cartalk.com/t/2005-ford-taurus-x-i-have-a-1406/137234>\
**Category:** Maintenance/Repairs\
**Tags:** ford\
**Created:** [March 25, 2019, 8:47pm UTC](https://community.cartalk.com/t/2005-ford-taurus-x-i-have-a-1406/137234 "2019-03-25T20:47:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![BARBARAWHEELER](https://avatars.discourse-cdn.com/v4/letter/b/aeb1de/32.png) [@BARBARAWHEELER](https://community.cartalk.com/u/BARBARAWHEELER)\
**Post date:** [March 25, 2019, 8:47pm UTC](https://community.cartalk.com/t/2005-ford-taurus-x-i-have-a-1406/137234/1 "2019-03-25T20:47:24Z")

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how to fix error code 1406

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [March 25, 2019, 8:50pm UTC](https://community.cartalk.com/t/2005-ford-taurus-x-i-have-a-1406/137234/2 "2019-03-25T20:50:48Z")

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Fix the one of these causes that made the code be set.

- Downstream hose is disconnected
- Downstream hose is plugged (ice)
- Plugged or damaged Exhaust Gas Recirculation (EGR) tube
- Faulty Differential Pressure Feedback Electronic (DPFE) sensor
- Differential Pressure Feedback Electronic (DPFE) sensor harness is open or shorted
- Differential Pressure Feedback Electronic (DPFE) sensor circuit poor electrical connection