DTC P0172: Sistema de Combustible Demasiado Rico (Honda Accord 2012-2017)
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[{'start': '1.079', 'end': '8.040', 'text': 'Welcome to the DIY Honda Garage channel.'}, {'start': '5.080', 'end': '11.280', 'text': 'The DTC P0172 trouble code'}, {'start': '8.040', 'end': '14.080', 'text': 'identified as'}, {'start': '11.280', 'end': '16.119', 'text': 'fuel system too rich is a'}, {'start': '14.080', 'end': '20.880', 'text': 'diagnostic trouble code related to'}, {'start': '16.119', 'end': '25.000', 'text': '2012 to 2017 Honda Accord models that'}, {'start': '20.880', 'end': '27.519', 'text': 'feature the K241 engine type.'}, {'start': '25.000', 'end': '31.000', 'text': 'This code indicates that the'}, {'start': '27.519', 'end': '33.760', 'text': 'powertrain control module (PCM) has detected'}, {'start': '31.000', 'end': '36.399', 'text': 'excessive fuel in the engine,'}, {'start': '33.760', 'end': '40.120', 'text': 'leading to a rich fuel mixture'}, {'start': '36.399', 'end': '42.680', 'text': '.  The PCM continuously monitors the'}, {'start': '40.120', 'end': '45.000', 'text': 'air-fuel ratio using'}, {'start': '42.680', 'end': '48.160', 'text': 'signals from the air-fuel ratio sensor'}, {'start': '45.000', 'end': '50.760', 'text': 'AF, also known as'}, {'start': '48.160', 'end': '52.800', 'text': 'sensor 1. It adjusts'}, {'start': '50.760', 'end': '55.760', 'text': 'fuel delivery through'}, {'start': '52.800', 'end': '58.519', 'text': 'short-term fuel trim to optimize'}, {'start': '55.760', 'end': '61.800', 'text': 'the air-fuel mixture under various'}, {'start': '58.519', 'end': '64.720', 'text': 'driving conditions.  Longitudinal fuel'}, {'start': '61.800', 'end': '67.119', 'text': 'trim data is collected and stored'}, {'start': '64.720', 'end': '69.840', 'text': 'in the'}, {'start': '67.119', 'end': '72.520', 'text': 'PCM memory over time to identify'}, {'start': '69.840', 'end': '75.960', 'text': 'potential malfunctions when deviations'}, {'start': '72.520', 'end': '78.640', 'text': 'exceed certain thresholds.  When the PCM'}, {'start': '75.960', 'end': '82.000', 'text': 'determines that the'}, {'start': '78.640', 'end': '84.520', 'text': 'long-term fuel trim is too low, it activates'}, {'start': '82.000', 'end': '87.400', 'text': 'this error code indicating the'}, {'start': '84.520', 'end': '90.000', 'text': 'need for further investigation'}, {'start': '87.400', 'end': '92.520', 'text': 'to address possible problems with the'}, {'start': '90.000', 'end': '96.439', 'text': 'fuel metering components.'}, {'start': '92.520', 'end': '99.240', 'text': 'In short, understanding and addressing DTC'}, {'start': '96.439', 'end': '102.159', 'text': 'P0172 is vital to maintaining the'}, {'start': '99.240', 'end': '104.240', 'text': 'overall health of your AOR waveform.  Recognizing the'}, {'start': '102.159', 'end': '108.320', 'text': 'role of fuel metering components'}, {'start': '104.240', 'end': '110.600', 'text': 'such as the PCM and AF sensor'}, {'start': '108.320', 'end': '112.840', 'text': 'is essential to diagnosing problems'}, {'start': '110.600', 'end': '115.799', 'text': 'that lead to a rich fuel mixture'}, {'start': '112.840', 'end': '117.719', 'text': '.  Symptoms associated with this'}, {'start': '115.799', 'end': '119.920', 'text': 'code, such as reduced'}, {'start': '117.719', 'end': '122.240', 'text': 'performance and increased'}, {'start': '119.920', 'end': '124.600', 'text': 'emissions, highlight the urgency of'}, {'start': '122.240', 'end': '126.439', 'text': 'prompt repairs, following a'}, {'start': '126.439', 'end': '131.840', 'text': 'thorough troubleshooting process, and performing'}, {'start': '128.920', 'end': '133.680', 'text': 'regular maintenance checks, greatly reducing'}, {'start': '131.840', 'end': '135.360', 'text': 'the chances of'}, {'start': '133.680', 'end': '138.319', 'text': 'experiencing'}, {'start': '135.360', 'end': '141.040', 'text': 'similar failures.  Ultimately, the'}, {'start': '138.319', 'end': '143.840', 'text': 'key points are the importance of'}, {'start': '141.040', 'end': '146.480', 'text': 'monitoring vehicle performance,'}, {'start': '143.840', 'end': '148.800', 'text': 'understanding the diagnostic process, and'}, {'start': '146.480', 'end': '151.760', 'text': 'implementing preventative maintenance strategies'}, {'start': '148.800', 'end': '156.120', 'text': 'to keep your vehicle in'}, {'start': '151.760', 'end': '159.200', 'text': 'optimal condition.  Error code'}, {'start': '156.120', 'end': '161.440', 'text': 'P0172 indicates a malfunction'}, {'start': '159.200', 'end': '165.680', 'text': 'involving the powertrain control module ('}, {'start': '161.440', 'end': '168.400', 'text': 'PCM).  The AF sensor is responsible'}, {'start': '165.680', 'end': '171.959', 'text': 'for providing real-time data on the'}, {'start': '168.400', 'end': '174.519', 'text': 'oxygen in the exhaust gases,'}, {'start': '171.959', 'end': '177.959', 'text': 'which is crucial for maintaining an'}, {'start': '174.519', 'end': '180.080', 'text': 'optimal air-fuel mixture.  The PCM uses'}, {'start': '177.959', 'end': '182.519', 'text': 'this data to adjust'}, {'start': '180.080', 'end': '185.159', 'text': 'fuel delivery through mechanisms such as'}, {'start': '182.519', 'end': '188.239', 'text': 'short- and'}, {'start': '185.159', 'end': '190.519', 'text': 'long-term fuel trims.  These adjustments'}, {'start': '188.239', 'end': '193.480', 'text': 'aim to maintain the air-'}, {'start': '190.519', 'end': '196.120', 'text': 'fuel ratio at a stoichiometric level,'}, {'start': '193.480', 'end': '198.319', 'text': 'ensuring efficient combustion and'}, {'start': '196.120', 'end': '200.480', 'text': 'reducing emissions.'}, {'start': '198.319', 'end': '202.920', 'text': 'Malfunctions occur when the'}, {'start': '200.480', 'end': '205.239', 'text': 'long-term fuel trim'}, {'start': '202.920', 'end': '207.360', 'text': 'indicates a lower than normal value,'}, {'start': '205.239', 'end': '210.760', 'text': 'suggesting an'}, {'start': '207.360', 'end': '212.879', 'text': 'excessively rich fuel mixture.  The PCM is typically'}, {'start': '210.760', 'end': '216.040', 'text': 'located inside the'}, {'start': '212.879', 'end': '217.920', 'text': 'engine compartment, while the AF sensor'}, {'start': '216.040', 'end': '220.480', 'text': 'is positioned in the'}, {'start': '217.920', 'end': '222.840', 'text': 'exhaust system, upstream of the'}, {'start': '220.480', 'end': '225.560', 'text': 'catalytic converter, making it accessible'}, {'start': '222.840', 'end': '228.799', 'text': 'for troubleshooting, testing,'}, {'start': '225.560', 'end': '232.040', 'text': 'and replacement.  Several possible causes'}, {'start': '228.799', 'end': '235.200', 'text': 'can lead to the P0172 error code'}, {'start': '232.040', 'end': '237.159', 'text': 'on your Honda Accord.  First,'}, {'start': '235.200', 'end': '239.560', 'text': 'fuel pump failure can prevent'}, {'start': '237.159', 'end': '242.360', 'text': 'proper fuel delivery,'}, {'start': '239.560', 'end': '244.120', 'text': 'which the PCM interprets as an'}, {'start': '242.360', 'end': '247.280', 'text': 'imbalance.'}, {'start': '244.120', 'end': '249.560', 'text': 'Injector failure is another potential cause where'}, {'start': '247.280', 'end': '251.519', 'text': 'the fuel injectors are'}, {'start': '249.560', 'end': '253.799', 'text': 'unable to deliver the'}, {'start': '251.519', 'end': '256.359', 'text': 'correct amount of fuel to the engine,'}, {'start': '253.799', 'end': '258.519', 'text': 'causing the mixture to become rich or'}, {'start': '256.359', 'end': '261.320', 'text': 'lean.  A'}, {'start': '258.519', 'end': '263.800', 'text': 'faulty fuel pressure regulator can also'}, {'start': '261.320', 'end': '266.880', 'text': 'contribute to this problem by allowing'}, {'start': '263.800', 'end': '269.120', 'text': 'excessive fuel pressure.'}, {'start': '266.880', 'end': '271.600', 'text': 'Leaks in the intake manifold or'}, {'start': '269.120', 'end': '274.320', 'text': 'throttle body can disrupt'}, {'start': '271.600', 'end': '277.160', 'text': 'the air-fuel mixture, leading to'}, {'start': '274.320', 'end': '279.680', 'text': 'incorrect sensor readings.'}, {'start': '277.160', 'end': '283.240', 'text': 'Additionally, problems with the'}, {'start': '279.680', 'end': '286.360', 'text': 'mass airflow sensor (MAF) or'}, {'start': '283.240', 'end': '288.680', 'text': 'manifold absolute pressure (MAP) sensor'}, {'start': '286.360', 'end': '290.960', 'text': 'could compromise air intake data,'}, {'start': '288.680', 'end': '292.960', 'text': 'causing the PCM to'}, {'start': '290.960', 'end': '295.320', 'text': 'misinterpret the'}, {'start': '292.960', 'end': '299.520', 'text': "engine's fuel needs and"}, {'start': '295.320', 'end': '302.680', 'text': 'ultimately trigger the DTC.'}, {'start': '299.520', 'end': '305.720', 'text': 'Symptoms associated with code'}, {'start': '302.680', 'end': '307.880', 'text': 'P0172 can significantly affect'}, {'start': '305.720', 'end': '310.800', 'text': 'vehicle performance and the'}, {'start': '307.880', 'end': '313.560', 'text': 'driver experience.  You may notice'}, {'start': '310.800', 'end': '316.120', 'text': 'a reduction in engine performance,'}, {'start': '313.560', 'end': '318.240', 'text': 'as a rich fuel mixture'}, {'start': '316.120', 'end': '321.160', 'text': 'can lead to'}, {'start': '318.240', 'end': '323.600', 'text': 'inefficient combustion.  Rough idle is'}, {'start': '321.160', 'end': '325.880', 'text': 'another common symptom caused by'}, {'start': '323.600', 'end': '328.520', 'text': 'fluctuations in the air-'}, {'start': '325.880', 'end': '332.039', 'text': "fuel balance that affect the engine's ability"}, {'start': '328.520', 'end': '335.120', 'text': 'to maintain a stable idle.'}, {'start': '332.039', 'end': '337.400', 'text': 'Additionally, you may experience poor'}, {'start': '335.120', 'end': '339.919', 'text': 'fuel economy, where the'}, {'start': '337.400', 'end': '342.919', 'text': 'vehicle consumes more fuel than'}, {'start': '339.919', 'end': '345.479', 'text': 'necessary due to the excessive amount'}, {'start': '342.919', 'end': '347.840', 'text': 'inside the combustion chamber.'}, {'start': '345.479', 'end': '350.080', 'text': 'Emissions could also increase'}, {'start': '347.840', 'end': '352.919', 'text': ', as an'}, {'start': '350.080', 'end': '355.080', 'text': 'overly rich condition often leads to'}, {'start': '352.919', 'end': '359.039', 'text': 'high levels of'}, {'start': '355.080', 'end': '361.560', 'text': 'harmful pollutants being expelled.  Finally,'}, {'start': '359.039', 'end': '363.800', 'text': 'the most immediate indicator is the'}, {'start': '361.560', 'end': '368.120', 'text': 'illumination of the'}, {'start': '363.800', 'end': '370.080', 'text': 'Mil malfunction warning lamp on the dashboard,'}, {'start': '368.120', 'end': '372.520', 'text': "signaling that the vehicle's computer"}, {'start': '370.080', 'end': '374.880', 'text': 'has detected a problem that'}, {'start': '372.520', 'end': '377.960', 'text': 'requires attention.  For the first step'}, {'start': '374.880', 'end': '381.440', 'text': 'in troubleshooting error'}, {'start': '377.960', 'end': '383.639', 'text': 'P0172, start by starting the engine.  It is'}, {'start': '381.440', 'end': '386.479', 'text': 'critical to maintain engine speed'}, {'start': '383.639', 'end': '390.840', 'text': 'at approximately 3,000 revolutions per'}, {'start': '386.479', 'end': '393.199', 'text': 'minute RPM without any load.  If your'}, {'start': '390.840', 'end': '396.479', 'text': 'vehicle has a continuously variable transmission ('}, {'start': '393.199', 'end': '399.599', 'text': 'CBT), make sure it is in'}, {'start': '396.479', 'end': '402.160', 'text': 'park P or neutral.  If you have a'}, {'start': '399.599', 'end': '405.319', 'text': 'manual transmission, it should also be'}, {'start': '402.160', 'end': '407.120', 'text': 'in neutral.  Maintain engine RTM'}, {'start': '405.319', 'end': '409.400', 'text': 'until the radiator fan activates'}, {'start': '407.120', 'end': '412.160', 'text': ', indicating that the engine has'}, {'start': '409.400', 'end': '414.479', 'text': 'reached operating temperatures.'}, {'start': '412.160', 'end': '417.160', 'text': 'After this, allow the engine to'}, {'start': '414.479', 'end': '419.280', 'text': 'idle and closely monitor'}, {'start': '417.160', 'end': '422.440', 'text': 'the long-term fuel trim value'}, {'start': '419.280', 'end': '426.039', 'text': '.  Ideally, if this'}, {'start': '422.440', 'end': '428.360', 'text': 'adjustment value remains around 1.0,'}, {'start': '426.039', 'end': '430.960', 'text': 'it suggests that the vehicle is operating'}, {'start': '428.360', 'end': '433.680', 'text': 'within normal parameters.'}, {'start': '430.960', 'end': '435.560', 'text': 'Conversely, noticeable deviations may'}, {'start': '433.680', 'end': '437.639', 'text': 'indicate persistent fault conditions'}, {'start': '435.560', 'end': '440.120', 'text': 'that require'}, {'start': '437.639', 'end': '441.919', 'text': 'further investigation of the'}, {'start': '440.120', 'end': '443.879', 'text': 'fuel metering system.'}, {'start': '441.919', 'end': '446.120', 'text': 'In the second troubleshooting step it'}, {'start': '443.879', 'end': '448.960', 'text': 'is essential to drive the'}, {'start': '446.120', 'end': '454.160', 'text': 'vehicle at a constant speed,'}, {'start': '448.960', 'end': '457.160', 'text': 'ideally between 15 and 75 miles per hour (approximately'}, {'start': '454.160', 'end': '460.160', 'text': '24 to 120'}, {'start': '457.160', 'end': '462.680', 'text': 'km/h).  This driving pattern should be'}, {'start': '460.160', 'end': '465.199', 'text': 'maintained for a minimum of 15'}, {'start': '462.680', 'end': '468.080', 'text': 'minutes, allowing the'}, {'start': '465.199', 'end': '470.560', 'text': 'on-board diagnostic system to analyze'}, {'start': '468.080', 'end': '473.319', 'text': 'long-term fuel trim under'}, {'start': '470.560', 'end': '475.680', 'text': 'controlled conditions.  During this'}, {'start': '473.319', 'end': '478.879', 'text': 'time, keep an eye on the'}, {'start': '475.680', 'end': '482.560', 'text': 'long-term fuel trim readings.'}, {'start': '478.879', 'end': '485.479', 'text': 'A constant setting around 1.0'}, {'start': '482.560', 'end': '487.039', 'text': 'indicates that the vehicle is operating'}, {'start': '485.479', 'end': '489.319', 'text': 'properly, while'}, {'start': '487.039', 'end': '492.280', 'text': 'significant fluctuations in this'}, {'start': '489.319', 'end': '495.080', 'text': 'value may suggest deeper problems'}, {'start': '492.280', 'end': '497.680', 'text': 'present within the'}, {'start': '495.080', 'end': '500.720', 'text': 'fuel delivery system.'}, {'start': '497.680', 'end': '504.000', 'text': 'If freeze frame data exists under these'}, {'start': '500.720', 'end': '506.400', 'text': 'specific conditions, it is advisable to'}, {'start': '504.000', 'end': '509.319', 'text': 'test under those circumstances rather than the'}, {'start': '506.400', 'end': '512.039', 'text': 'standard driving pattern.  This'}, {'start': '509.319', 'end': '514.880', 'text': 'observation will help identify whether the'}, {'start': '512.039', 'end': '517.479', 'text': 'problem persists or is isolated.  The'}, {'start': '514.880', 'end': '520.560', 'text': 'third troubleshooting step'}, {'start': '517.479', 'end': '523.560', 'text': 'involves clearing the DTC by disconnecting the'}, {'start': '520.560', 'end': '526.440', 'text': "vehicle's battery or using a"}, {'start': '523.560', 'end': '529.800', 'text': 'scan tool equipped with a'}, {'start': '526.440', 'end': '532.360', 'text': 'clear DTC command.  This action'}, {'start': '529.800', 'end': '535.519', 'text': 'resets the on-board diagnostics,'}, {'start': '532.360', 'end': '538.120', 'text': 'clearing any stored faults.'}, {'start': '535.519', 'end': '540.880', 'text': 'After clearing the code, drive the'}, {'start': '538.120', 'end': '545.279', 'text': 'Honda Cord at a constant speed'}, {'start': '540.880', 'end': '548.880', 'text': 'ranging from 15 to 55 mph ('}, {'start': '545.279', 'end': '552.920', 'text': 'approximately 25 to 90'}, {'start': '548.880', 'end': '555.240', 'text': 'km/h) for at least 40 minutes.  This'}, {'start': '552.920', 'end': '557.880', 'text': 'period allows the onboard system to'}, {'start': '555.240', 'end': '561.440', 'text': 'recover and regenerate'}, {'start': '557.880', 'end': '564.079', 'text': 'long-term fuel trim data.  It is crucial to'}, {'start': '561.440', 'end': '565.959', 'text': 'perform this test in accordance with'}, {'start': '564.079', 'end': '568.360', 'text': 'traffic regulations and'}, {'start': '565.959', 'end': '569.880', 'text': 'environmental conditions for'}, {'start': '568.360', 'end': '572.399', 'text': 'accurate results.'}, {'start': '569.880', 'end': '574.680', 'text': 'After the driving cycle you should'}, {'start': '572.399', 'end': '577.880', 'text': 'check the'}, {'start': '574.680', 'end': '580.440', 'text': 'long-term fuel trim again.  If it returns to'}, {'start': '577.880', 'end': '583.160', 'text': 'normal, it suggests that the'}, {'start': '580.440', 'end': '585.399', 'text': 'previous problem may have been transient or'}, {'start': '583.160', 'end': '587.560', 'text': 'minor.  Final'}, {'start': '585.399', 'end': '589.920', 'text': 'repair verification is a critical step to'}, {'start': '587.560', 'end': '592.560', 'text': 'ensure that all previous problems'}, {'start': '589.920', 'end': '596.320', 'text': 'associated with DTC'}, {'start': '592.560', 'end': '598.839', 'text': 'P0172 have been fully resolved.'}, {'start': '596.320', 'end': '601.760', 'text': 'Start by confirming that there are no'}, {'start': '598.839', 'end': '603.800', 'text': 'active diagnostic trouble codes.'}, {'start': '601.760', 'end': '607.120', 'text': 'This can be done using an'}, {'start': '603.800', 'end': '609.000', 'text': 'OBD2 scanner which should indicate a'}, {'start': '607.120', 'end': '611.519', 'text': 'clean slate.'}, {'start': '609.000', 'end': '614.760', 'text': 'Next, check the'}, {'start': '611.519', 'end': '617.480', 'text': 'engine performance.  It should operate smoothly,'}, {'start': '614.760', 'end': '620.519', 'text': 'without rough idling or hesitation under a'}, {'start': '617.480', 'end': '622.560', 'text': 'variety of conditions.  Finally,'}, {'start': '620.519', 'end': '624.800', 'text': 'verify that fuel trim levels'}, {'start': '622.560', 'end': '627.440', 'text': 'are stable and within'}, {'start': '624.800', 'end': '629.880', 'text': 'appropriate parameters, especially'}, {'start': '627.440', 'end': '632.000', 'text': 'during idling and'}, {'start': '629.880', 'end': '634.320', 'text': 'moderate driving conditions.'}, {'start': '632.000', 'end': '636.920', 'text': 'If all of these points meet'}, {'start': '634.320', 'end': '639.639', 'text': 'normal operating thresholds, it is safe to'}, {'start': '636.920', 'end': '642.680', 'text': 'conclude that the residual issues'}, {'start': '639.639', 'end': '645.560', 'text': 'related to error code'}, {'start': '642.680', 'end': '648.399', 'text': 'P0172 have been effectively addressed'}, {'start': '645.560', 'end': '651.279', 'text': '.  Preventative maintenance is'}, {'start': '648.399', 'end': '655.000', 'text': 'essential to prevent the recurrence of'}, {'start': '651.279', 'end': '657.560', 'text': 'P0172 and related error codes.'}, {'start': '655.000', 'end': '659.480', 'text': 'First and foremost, perform'}, {'start': '657.560', 'end': '661.680', 'text': 'regular checks of the entire'}, {'start': '659.480', 'end': '664.399', 'text': 'fuel system, including the'}, {'start': '661.680', 'end': '666.560', 'text': 'fuel pump, injectors, and'}, {'start': '664.399', 'end': '669.360', 'text': 'fuel lines, to ensure'}, {'start': '666.560', 'end': '671.959', 'text': 'optimal functionality.'}, {'start': '669.360', 'end': '674.760', 'text': 'Routine sensor calibration, particularly for'}, {'start': '671.959', 'end': '677.720', 'text': 'the air-fuel ratio sensor and'}, {'start': '674.760', 'end': '679.920', 'text': 'MAF sensor, is also crucial,'}, {'start': '677.720', 'end': '682.240', 'text': 'as inaccuracies can lead to'}, {'start': '679.920', 'end': '685.000', 'text': 'rich or lean fuel conditions'}, {'start': '682.240', 'end': '687.639', 'text': '.  Additionally, monitoring any'}, {'start': '685.000', 'end': '690.720', 'text': 'exhaust leaks helps ensure the'}, {'start': '687.639', 'end': '693.079', 'text': 'PCM receives accurate data about'}, {'start': '690.720', 'end': '694.639', 'text': 'exhaust contents.  Keeping'}, {'start': '693.079', 'end': '696.600', 'text': 'track of'}, {'start': '694.639', 'end': '698.440', 'text': 'engine performance metrics, such as'}, {'start': '696.600', 'end': '700.959', 'text': 'fuel efficiency and'}, {'start': '698.440', 'end': '703.760', 'text': 'emissions, can also provide'}, {'start': '700.959', 'end': '706.839', 'text': 'early warnings of problems'}, {'start': '703.760', 'end': '709.399', 'text': 'that can lead to DTCs.  By taking'}, {'start': '706.839', 'end': '711.760', 'text': 'these proactive steps, you can improve'}, {'start': '709.399', 'end': '715.000', 'text': 'vehicle performance and limit the'}, {'start': '711.760', 'end': '717.600', 'text': 'need for more'}, {'start': '715.000', 'end': '721.600', 'text': 'extensive repairs.  Give it a like and subscribe to the'}, {'start': '717.600', 'end': '721.600', 'text': 'channel.  See you next time.  A.M.'}]