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Lean code on bank 2, Dont know where bank 2 is located or what the firing diagram looks like

Tiny
CCAUDILL
  • MEMBER
  • 2004 MAZDA MPV
  • 91 MILES
I have had the rear three plugs and coils replaced that required the manifold to be removed. I replaced the front three plugs today and engine light is still on.
Monday, January 2nd, 2012 AT 9:53 PM

8 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
What is the exact code/s popping up?
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Monday, January 2nd, 2012 AT 9:57 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
What is the exact code number not code description?I would be looking for a vacuum leak first with that code.
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Monday, January 2nd, 2012 AT 9:57 PM
Tiny
CCAUDILL
  • MEMBER
  • 4 POSTS
I do not know the code number the guy at Advance Auto did not give me one. I looked at the readout and all it said was lean on bank 2
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Monday, January 2nd, 2012 AT 10:07 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Its a lot better to have the code numbers when you look up the codes to get you the trouble trees the exact numbers are needed.
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Monday, January 2nd, 2012 AT 10:12 PM
Tiny
CCAUDILL
  • MEMBER
  • 4 POSTS
I had a vacuum leak repaired recently. How many types of vacuum leaks are possible?
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Monday, January 2nd, 2012 AT 10:20 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
There is manifold ported and ventri the leak you would be looking for would be a manifold vacuum leak. Again the code number would be great. Have you looked for another vacuum leak?
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Monday, January 2nd, 2012 AT 10:31 PM
Tiny
CCAUDILL
  • MEMBER
  • 4 POSTS
No, I have not. I don't know where to begin looking for a vacuum leak. Any help would be greatly appreciated.
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Monday, January 2nd, 2012 AT 11:06 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
You would let it idle get some carb spray and spray around the intake all the vacuum hoses etc and listen fir idle to go up down stumble or die.
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Monday, January 2nd, 2012 AT 11:19 PM

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