Question about 2005 Nissan Maxima

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My 2005 nissan maxima has a p0171 code which means it runs too lean. while driving, it loses power then it comes back as if car is staving for gas. What should i look for?

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  • 'G' Aug 04, 2010

    BEING LEAN CAN BE A NUMBER OF THINGS. THE MOST COMMON THING IS A VACUUM LEAK. WAS THERE ANY OTHER CODES

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P0171 indicates a lean condition. The most common cause of this is a defective mass air flow sensor. Also check if any vacuum leaks.Replace MAf sensor,if cleaning the MAF does not help.

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Posted on Oct 01, 2010

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I have gotten the codes p0171 and p0134 what are they


P0171 indicates system lean (bank 1). P0134 indicates no activity from sensor 1 on bank 1. You could have a bad O2 sensor or an actual lean condition. Possible causes of a lean condition include a restricted fuel filter on a vacuum leak.

Jun 02, 2011 | 2000 Nissan Maxima

1 Answer

My 2005 mustang GT was scanned and the following codes came back: P0171 AND P0174. What does these mean


P0171 Means system is to lean on bank #1. P0174 Means system to lean on bank #2.

Dec 14, 2010 | 2005 Ford Mustang

1 Answer

2000 Nissan Maxima enginge light... Code P0171


lean mixture on bank 1. Check for vacuum leaks, especially at intake manifold gaskets. I spray ether or carb cleaner at gaskets. If engine revs, there is leak.

Sep 17, 2010 | 2000 Nissan Maxima

4 Answers

I have four codes. P0136, P0141, P0171, P0401.


p0136 and p0141 are o2 sensors and p0401 is a egr flow and the p0171 means its running lean on low bank 1

Jun 30, 2010 | 1996 Ford Econoline

2 Answers

P0171B


It means that your engine is running lean - not getting enough fuel for the amount of air that the engine is receiving. Because your maxima is equipped with a V-6 engine, whatever the problem, it is affecting only bank #1. Bank #1 is always the side of the engine where cylinder #1 is located, or in your case, the left side of the engine as it is viewed while facing the crankshaft end of the engine.
(on a 4 cylinder engine, there is only one bank and it is always referred to as Bank #1)
There are several things that can cause a lean condition including vacuum leaks, a malfunctioning Evaporative Emissions system, a misfiring cylinder (due to bad plugs, bad injectors, or an intake or head gasket leak.), a malfunctioning Mass Airflow sensor (MAF) or Manifold Absolute Pressure sensor (MAP) or even a bad Oxygen sensor (O2s) (Nissan sometimes calls an O2s an "Air-Fuel Ratio Sensor") It is even possible for a leaking vacuum brake booster to cause a lean code.
If there are any other malfunction codes present, it may help to pinpiont the cause of the lean code. (Like a P0301 "cylinder#1 misfire detected", in which case, you would address the misfire code first.)
Certain problems, like a leaking brake booster or a bad MAF will usually set lean codes for BOTH banks.
If the P0171 is the ONLY code present, the most likely cause is a bad O2s, but I recommend some diagnostic testing to prove it before spending the mega-bucks that Nissan gets for their O2 sensors.

Oct 10, 2009 | 2000 Nissan Maxima

1 Answer

1998 mercury sable codes


P0171, P0172 are bank one and two running lean which means not enough fuel, P0174 and 175 are bank one and two running rich which means getting too much fuel it sounds like a Mass Air Flow sensor issue or a computer issue and P0761 is a Transmission Shift Solenoid issue which could be an internal transmission problem and electrical problem or a computer problem

Apr 14, 2009 | 1987 Nissan Maxima

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