Running lean

2001 NISSAN MAXIMA
144,000 MILES • 3.0L • 6 CYL • FWD • MANUAL
Avatar
BEN95
  • MEMBER
  • 3 POSTS
My 02 sensors are not reading causing my car to run lean. What could it be.
Feb 2, 2016 at 2:36 AM
Avatar
HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
check fuel pressure with a gauge autoparts rent it.
Feb 2, 2016 at 4:08 AM
Avatar
BEN95
  • MEMBER
  • 3 POSTS
And it also seems likes its misfiring at idle
Feb 2, 2016 at 4:23 AM
Avatar
HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
check for a vacuum leak as well then have it scanned for codes.
Feb 2, 2016 at 4:27 AM
Avatar
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
Feb 2, 2016 at 4:29 AM
Avatar
HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
do what I said in both replies
Feb 2, 2016 at 4:32 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle