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06 pontiac g6 3.9l p0171 p0174 p0101 - G6 Pontiac Cars & Trucks

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  • Pontiac Master
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P0171: Fuel Trim System Lean Bank 1 https://www.autocodes.com/p0171_pontiac.html

P0174: Fuel Trim System Lean Bank 2 https://www.autocodes.com/p0174_pontiac.html

P0101: Mass Air Flow Sensor Performance https://www.autocodes.com/p0101_pontiac.html

Posted on Dec 21, 2016

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Posted on Jan 02, 2017

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SOURCE: P0101 p0171 p0174 engine codes

Those are lean codes and a MAF (P0101) code. Make sure the MAF sensor is plugged in, and there are no leaks/ loose hoses between the air filter and the engine. You may have a vac leak at the intake also, but check these first, If all appears OK a repair shop will need to check it out for you.

Posted on Dec 16, 2009

alicantecoli
  • 22246 Answers

SOURCE: hello, took my car for emissions test and fail

well go back and ask for proper print out of what the emmisions readings are ,i cannot beleave that a vehicle test station can fail a vehicle and not tell you what the emmisions readings are but give you a lot of useless p numbers ,dont they put a probe up the exhaust and test it properly ,They would have field day trying to test europeon cars here in europe with all the encrypted software used on vehicles here and the vehicle shutting its self down with the immobilisor and throwing out code p whatever for illegal access to the ECU.any way try changing the lambada sensors as i think that this is what code P171 and 174 refer too

Posted on Jun 21, 2010

jsmes1027
  • 749 Answers

SOURCE: what are these codes and how do I fix them? P0101

  • P0101 - Mass Air Flow (MAF) Sensor Performance
  • P0171 - Fuel Trim System Lean Bank 1
  • P0174 - Fuel Trim System Lean Bank 2
  • Would start with the mass air flow sensor the other two codes may have been triggered by the performance of the MAF sensor. Is the vehicle running poorly or have high or low idle?

    Posted on Nov 03, 2010

    • 1243 Answers

    SOURCE: 2004 x-type 3.0 v6 152,000 miles showed codes P0171, P0174, P2096, P2098, P0101, P0171 pd, P1000.

    check for vacuum leaks or a faulty mass air flow sensor. all the codes have to do with engine too lean(too much air).

    Posted on Jun 10, 2012

    • 457 Answers

    SOURCE: 1999 GMC Suburban 5.7l Poor acceleration and runs rough.

    seems that your mass airflow sensor has failed. it's located between your air filter and your throttle body, and looks like a short plastic tube with a small module and a three or four wire connector on it. start with the classic "screwdriver test". start the engine and lightly tap the plastic tube with the plastic handle of a screwdriver. not too hard, but hard enough to let it know that its being tapped. if the motor reacts to the tap, the sensor is bad and needs to be replaced. the p0101 code is enough reason to replace it, but we mechanics like to whack them every now and then. :)

    Posted on Mar 06, 2013

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    1999 GMC Suburban 5.7l Poor acceleration and runs rough.


    seems that your mass airflow sensor has failed. it's located between your air filter and your throttle body, and looks like a short plastic tube with a small module and a three or four wire connector on it. start with the classic "screwdriver test". start the engine and lightly tap the plastic tube with the plastic handle of a screwdriver. not too hard, but hard enough to let it know that its being tapped. if the motor reacts to the tap, the sensor is bad and needs to be replaced. the p0101 code is enough reason to replace it, but we mechanics like to whack them every now and then. :)

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    1 Answer

    2004 x-type 3.0 v6 152,000 miles showed codes P0171, P0174, P2096, P2098, P0101, P0171 pd, P1000.


    check for vacuum leaks or a faulty mass air flow sensor. all the codes have to do with engine too lean(too much air).

    Jun 09, 2012 | Cars & Trucks

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    I have a 1997 Chevy Blazer with the 4.3 engine. The Service Engine light keeps coming on. I scanned the codes and replaced the O2 sensor just before the catalytic converter. The light is still coming on...


    P0146 pd means pending code
    Pending codes and DTCs? Posted on November 12, 2010 by fcrmaster
    When reading codes from your vehicle the fault code reader may show them as pending codes or normal Diagnostic Trouble Codes (DTC).
    Pending codes (also known as continuous monitor codes) will be registered when an intermittent fault occurs. If that fault does not happen again after x number of start/stop cycles, the ECU will erase the code from memory. If the fault is persistent it becomes a DTC.
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    If the codes read include a DTC then you need to investigate further. This you can either do yourself or advise your garage. If, again, you don't see an apparent problem (depending n the severity of the code) with the vehicle you can note the codes down and erase them. Then check again after a week or a few days depending on how often the vehicle gets used. If a repair has been made (previous owner) the DTC may just not have been reset after the repair.
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    DTC P0174 Fuel Trim System Lean Bank 2
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    What are these codes and how do I fix them? P0101 P0171 P0174


  • P0101 - Mass Air Flow (MAF) Sensor Performance
  • P0171 - Fuel Trim System Lean Bank 1
  • P0174 - Fuel Trim System Lean Bank 2
  • Would start with the mass air flow sensor the other two codes may have been triggered by the performance of the MAF sensor. Is the vehicle running poorly or have high or low idle?

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    P0313 - Misfire Detected with Low Fuel
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    P0171 -System too Lean (Bank 1).

    P0171 and P0174 mean "system too lean" for banks 1

    Aug 24, 2010 | 2000 BMW 3 Series

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    Is there any recalls on the gas tanks of the 2006 cobalts cause my tank is leaking at the top


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    P0174 is System Too Lean Bank 'B'. This will almost certainly be an air leak somewhere in Bank B from where the inlet manifold splits into 2 to feed Bank 'A' and 'B', or possibly a leak in the exhaust manifold / catalyst or where the O2 sensors are fitted into the exhaust. Cleaning the MAF is unlikely to make a difference, as if this is the problem you'll either get a lean code for both banks (P0171 and P0174) or a MAF sensor code (P0101). If the O2 sensor is a fault you'll get an O2 sensor code for Bank B, so don't chance an expensive change of this!
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    As regards to only showing up on highway driving, the leak may only be small and only evident at a higher under bonnet temperature.

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    1 Answer

    P0101 p0171 p0174 engine codes on gmc siera 3/4 ton 6.0l idle rough


    Those are lean codes and a MAF (P0101) code. Make sure the MAF sensor is plugged in, and there are no leaks/ loose hoses between the air filter and the engine. You may have a vac leak at the intake also, but check these first, If all appears OK a repair shop will need to check it out for you.

    Dec 16, 2009 | 2003 GMC Sierra 2500HD

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