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Code P0402 - excess flow detected

Discussion in '3rd Gen 4Runners (1996-2002)' started by mem4runner, Mar 6, 2020.

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Mar 6, 2020 at 7:41 AM

#1

#1
mem4runner [OP] New Member

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Feb 17, 2020

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204

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Male

First Name:

Tim

NOLA

Vehicle:

1997 Base 4cyl. 5spd, 2019 TRD OR

My 97 3RZ-FE check engine light came on last week for P0402. I started by replacing the EGR vac. modulator and the VSV, reset the code last night, and it came back on this morning.

Anyone else have any experience with EGR excessive flow codes? What should I try next?

mem4runner, Mar 6, 2020

#1

Mar 12, 2020 at 8:24 AM

#2

#2
mem4runner [OP] New Member

Joined:

Feb 17, 2020

Member:

#13181

Messages:

204

Gender:

Male

First Name:

Tim

NOLA

Vehicle:

1997 Base 4cyl. 5spd, 2019 TRD OR

Well I was wrong, the new code that following morning was for P0420, 02 sensors all good, so I just need a new cat.

mem4runner, Mar 12, 2020

#2

Mar 19, 2020 at 9:57 AM

#3

#3
mem4runner [OP] New Member

Joined:

Feb 17, 2020

Member:

#13181

Messages:

204

Gender:

Male

First Name:

Tim

NOLA

Vehicle:

1997 Base 4cyl. 5spd, 2019 TRD OR

Bump:

Mechanic quoted $660 to replace the CAT with an OEM. This seem reasonable?

mem4runner, Mar 19, 2020

#3

Mar 20, 2020 at 10:57 AM

#4

#4
negusm New Member

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2002 4Runner SR5 4WD

Depends on where you live.

negusm, Mar 20, 2020

#4

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