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Error: P0128 and P4022 "Main Cat Efficiency" and "Low Bank"

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Error: P0128 and P4022 "Main Cat Efficiency" and "Low Bank"

  #1  
Old 04-12-2008, 06:16 PM
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Join Date: Oct 2006
Location: North CT / Denmark
Posts: 115
Default Error: P0128 and P4022 "Main Cat Efficiency" and "Low Bank"

Long story short.... this is my father's car which I am now driving because my parents moved back to Europe. He did mention to me that the check engine light was on.

Today I plug it in and I got 2 codes:

P-0128 - Unconfirmed (awesome!)

P-4022 - Main Cat efficiency Lowe bank # 1

Now from what I have searched my way around to there are 4 variables here: Plugs, Coils, Injectors and the cat... most of the problems I read about were on diff. cars but I am not sure if these are common to the V70 also.

Any input on this?
 

Last edited by rspi; 05-04-2012 at 09:02 PM. Reason: typo
  #2  
Old 04-12-2008, 07:44 PM
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Join Date: Apr 2007
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Posts: 100
Default RE: Error: P0128 and P4022 "Main Cat Efficiency" and "Low Bank"

Check your exhaust manifold gaskets. Most of the time thats what can cause. After time they fall apart causing an exhaust leak.
 
  #3  
Old 04-17-2008, 06:10 AM
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Join Date: Oct 2006
Location: North CT / Denmark
Posts: 115
Default RE: Error: P0128 and P4022 "Main Cat Efficiency" and "Low Bank"

Manifold Gaskets? Interesting - i will check that out.



Thanks.
 
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