2001 Nissan Sentra Wont idle with cold weather

Tiny
BIGGE
  • MEMBER
  • 2001 NISSAN SENTRA
  • 1.8L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 172,000 MILES
The car cranks find with engine cold but shuts off after a few seconds, it is worse in cold weather, can keep foot on gas till car warms up and it will run fine, also it have been doing this a couple of months and today it set a code P0171. I have taken the IACV off and cleaned and replaced the MAF
Friday, November 21st, 2014 AT 1:50 AM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
P0171 Nissan - Fuel Injection System Too Lean Bank 1

Possible causes

- Intake air leaks
- Faulty front heated oxygen sensor
- Ignition misfiring
- Faulty fuel injectors
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Faulty Mass Air Flow (MAF) sensor
- Incorrect Positive Crankcase Ventilation (PCV) hose connection

Check all tune related items, blocked air or fuel filter, worn spark plugs and vacuum leaks,
Start here.
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Friday, November 21st, 2014 AT 2:42 AM
Tiny
BIGGE
  • MEMBER
  • 15 POSTS
Fuel filter, plugs, air filter are good and I checked vacuum system with starter fluid with no change
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Saturday, November 22nd, 2014 AT 7:30 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Have you checked all the other items on the list?
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Sunday, November 23rd, 2014 AT 4:58 AM

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