1994 mercury cougar CODE:1406

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Carguy1 · Answer 1 · 2018-11-02T15:06:11+0000

Hi there,

This code indicates an issue with the DPFE sensor. Here is a list of possible causes.

P1406 MERCURY - DPFE Sensor Circuit Downstream Hose

Read more: https://www.autocodes.com/p1406_mercury.html