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Check engine light is on, EGR trouble codes

Tiny
RICHARD BROOKS
  • MEMBER
  • 2002 MAZDA MILLENIA
  • 2.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 118,000 MILES
EGR replaced, EGR solenoid/motor also, check engine light remains.
Wednesday, October 3rd, 2018 AT 1:32 PM

4 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

Lets start with the code as there are many EGR codes?

Roy
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Wednesday, October 3rd, 2018 AT 1:58 PM
Tiny
RICHARD BROOKS
  • MEMBER
  • 3 POSTS
Code po400 fault in flow of EGR for predetermined period of time.
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Thursday, October 4th, 2018 AT 1:06 PM
Tiny
RICHARD BROOKS
  • MEMBER
  • 3 POSTS
Code PO400.
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Thursday, October 4th, 2018 AT 1:10 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I attached the flow chart for the code. You will need a scan tool to perform this to determine the failure.

Roy
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Thursday, October 4th, 2018 AT 2:00 PM

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