2002 couger code P0402

Tiny
COUGAR_2002
  • MEMBER
  • 2002 MERCURY COUGAR
  • 6 CYL
  • 46,000 MILES
I too have a 2002 cougar with code P0402, indicating it could be the EGR sensor. In a previous post you showed a picture of two items which could affect the sensor. Which do you suggest I go after first? Can you explain each of the two and are there any instructions on how to get at them and replace them?

Thank you in advance,
Dale
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Friday, July 15th, 2011 AT 7:41 PM

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Tiny
RASMATAZ
  • MEMBER
The DPFE sensor and then the actuator solenoid
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Sunday, October 9th, 2011 AT 8:06 AM

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