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Running lean

Tiny
BEN95
  • MEMBER
  • 2001 NISSAN MAXIMA
  • 3.0L
  • 6 CYL
  • FWD
  • MANUAL
  • 144,000 MILES
My 02 sensors are not reading causing my car to run lean. What could it be.
Tuesday, February 2nd, 2016 AT 10:36 AM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check fuel pressure with a gauge autoparts rent it.
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Tuesday, February 2nd, 2016 AT 12:08 PM
Tiny
BEN95
  • MEMBER
  • 3 POSTS
And it also seems likes its misfiring at idle
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Tuesday, February 2nd, 2016 AT 12:23 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check for a vacuum leak as well then have it scanned for codes.
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Tuesday, February 2nd, 2016 AT 12:27 PM
Tiny
BEN95
  • MEMBER
  • 3 POSTS
I scanned it and no codes come up. But it does sound like a slight air leak coming from the backside of the plastic upper intake. But sprayed with brake clean and no difference in idle
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Tuesday, February 2nd, 2016 AT 12:29 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Do what I said in both replies
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Tuesday, February 2nd, 2016 AT 12:32 PM

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