Q: Car hard to start initially

asked by on

A diagnostic gev me error code P0171. It stalls or hesitates to start unless I give it gas. When initially cranking, it starts, but after a few seconds it stalls. Once running though, it stays on.

Unfortunately there could be a variety of reasons as to why your Nissan is experiencing these symptoms and displaying the code P0171. This code stands for System too Lean, meaning the computer is reading unmetered air in the system. A faulty Mass Airflow Sensor, a vacuum leak or even a failing oxygen sensor can duplicate the same symptoms your Maxima is experiencing. To be 100% certain this is the problem however, it may be time to enlist the assistance of a certified mechanic to come by and diagnose your Maxima in person. Once there, they will have the tools needed to identify the source of your Nissan’s symptoms with starting and make the repairs necessary to get your Maxima running smooth again.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Car hard to start initially

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I just got my radiator replaced. Before leaving the mechanic shop they tell me they heard a noise from the cooling fan bearing.

You should look at the fan blades after the engine cools down and inspect each fan blade for cracks or chips from blades. This can cause the fan to be out of balance and cause the vibration when fan comes...

Q: Car struggles to go up hills and only goes 40-60 mph depending how steep the hill is. What's wrong with my car?

Hi there: Anytime a check engine light is illuminated it's because a sensor has detected a mechanical or electrical fault that impacts the vehicle's performance. If the mechanic you go to hasn't completed a check engine light inspection; which means...

Q: I hear a grinding noise when driving I notice when I move the steering wheel to the left the sound is gone.

Hi Renazar. Thanks for contacting us today. Assuming that the noise comes when you are driving forward and not braking, then the noise is likely coming from the wheel bearings that are wearing out. It is also possible that you...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...