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2001 Nissan Maxima Fuel System leak bank 1

Tiny
MARKMALDONADO
  • MEMBER
  • 2001 NISSAN MAXIMA
Engine Mechanical problem
2001 Nissan Maxima 6 cyl Front Wheel Drive Automatic

I've been having a fuel system leank in bank 1 and its not any of the following:

*not low fuel preasure
*not a vacum leak
*not the Mass air flow sensor

what can I do? Or what can it be
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Monday, May 11th, 2009 AT 2:08 PM

2 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Check and replace PCV valve
Possible cause:
Leaking plenum "O" ring/gasket.
I know you said no vacuum leak
but wait until engine goes into close loop and check o2 reading
spray carb cleaner at the base of manifold watch as watching O2 readings
do a smoke test
best of luck

*****************************************
need manual CHECK IT @
https://www.2carpros.com/kpages/auto_repair_manuals.htm
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Monday, May 11th, 2009 AT 5:56 PM
Tiny
MARKMALDONADO
  • MEMBER
  • 3 POSTS
Well I already changed the plenum "O" ring/gasket but ill check on that PCV valve
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Monday, May 11th, 2009 AT 7:58 PM

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