DTC P0172 Sistema de combustible del banco trasero (Banco 1) demasiado rico - Honda Accord 2012-2017
DIY Honda Garage Español
[{'start': '1.160', 'end': '9.480', 'text': 'Welcome to the Day Honda Garage channel.'}, {'start': '5.080', 'end': '12.040', 'text': 'In this presentation we will cover the DTC'}, {'start': '9.480', 'end': '14.200', 'text': 'P0172 which indicates'}, {'start': '12.040', 'end': '16.560', 'text': 'Rear Bank Fuel System'}, {'start': '14.200', 'end': '21.080', 'text': 'Too Rich for'}, {'start': '16.560', 'end': '24.119', 'text': '2012 to 2017 Honda Accord models. This'}, {'start': '21.080', 'end': '26.560', 'text': 'error code is significant as it informs'}, {'start': '24.119', 'end': '29.960', 'text': 'mechanics that the powertrain control module'}, {'start': '26.560', 'end': '32.200', 'text': 'or PCM has detected an'}, {'start': '29.960', 'end': '34.520', 'text': 'abnormality in the air'}, {'start': '32.200', 'end': '37.000', 'text': 'fuel ratio, which is sensed by the'}, {'start': '34.520', 'end': '40.160', 'text': 'rear air fuel ratio sensor'}, {'start': '37.000', 'end': '43.840', 'text': 'also known as AF sensor, bank'}, {'start': '40.160', 'end': '46.440', 'text': '1, sensor 1. Fuel system being'}, {'start': '43.840', 'end': '49.360', 'text': 'too rich means there is'}, {'start': '46.440', 'end': '51.640', 'text': 'excess fuel in the air'}, {'start': '49.360', 'end': '54.320', 'text': 'fuel mixture, which can lead to'}, {'start': '51.640', 'end': '57.600', 'text': 'engine misfires and increased'}, {'start': '54.320', 'end': '60.440', 'text': 'emissions.  The role of the PCM is to maintain'}, {'start': '57.600', 'end': '62.680', 'text': 'an optimal air-fuel ratio by'}, {'start': '60.440', 'end': '66.080', 'text': 'varying the fuel trim on'}, {'start': '62.680', 'end': '68.920', 'text': 'short notice.  If the PCM detects that the'}, {'start': '66.080', 'end': '71.119', 'text': 'long-term fuel trim'}, {'start': '68.920', 'end': '74.680', 'text': 'deviates significantly from the'}, {'start': '71.119', 'end': '76.920', 'text': 'normal range, it stores this DTC to alert'}, {'start': '74.680', 'end': '79.799', 'text': 'the technician for further diagnosis and'}, {'start': '76.920', 'end': '82.560', 'text': 'repair.  It is crucial to'}, {'start': '79.799', 'end': '85.320', 'text': 'address this issue immediately to'}, {'start': '82.560', 'end': '87.720', 'text': 'ensure vehicle efficiency and'}, {'start': '85.320', 'end': '90.759', 'text': 'compliance with'}, {'start': '87.720', 'end': '93.240', 'text': 'emissions regulations.  The key component affected'}, {'start': '90.759', 'end': '96.560', 'text': 'by DTC'}, {'start': '93.240', 'end': '99.560', 'text': 'P0172 is the rear air-fuel ratio sensor'}, {'start': '96.560', 'end': '103.600', 'text': ', specifically the'}, {'start': '99.560', 'end': '106.159', 'text': 'AF sensor located on bank 1. The'}, {'start': '103.600', 'end': '108.479', 'text': 'primary function of this sensor is to'}, {'start': '106.159', 'end': '111.320', 'text': 'measure the oxygen content in the'}, {'start': '108.479', 'end': '114.240', 'text': 'exhaust gases, providing'}, {'start': '111.320', 'end': '115.840', 'text': 'feedback to the PCM.'}, {'start': '114.240', 'end': '118.719', 'text': 'Based on this'}, {'start': '115.840', 'end': '121.079', 'text': 'feedback, the PCM can adjust'}, {'start': '118.719', 'end': '123.719', 'text': 'fuel injection to'}, {'start': '121.079', 'end': '126.640', 'text': 'maintain the ideal air-fuel mixture'}, {'start': '123.719', 'end': '128.280', 'text': ', known as the'}, {'start': '126.640', 'end': '131.239', 'text': 'stoichiometric ratio.'}, {'start': '128.280', 'end': '134.440', 'text': 'Short-term fuel trim'}, {'start': '131.239', 'end': '136.920', 'text': 'allows the PCM to make quick adjustments'}, {'start': '134.440', 'end': '139.519', 'text': 'to fuel delivery based on'}, {'start': '136.920', 'end': '141.599', 'text': 'current driving conditions,'}, {'start': '139.519', 'end': '144.519', 'text': 'while'}, {'start': '141.599', 'end': '146.800', 'text': 'long-term fuel trim is used to evaluate'}, {'start': '144.519', 'end': '149.080', 'text': 'average fuel delivery'}, {'start': '146.800', 'end': '151.760', 'text': 'over time to accommodate'}, {'start': '149.080', 'end': '154.720', 'text': 'component wear or'}, {'start': '151.760', 'end': '158.400', 'text': 'system changes.  If the'}, {'start': '154.720', 'end': '161.440', 'text': 'long-term fuel trim exceeds certain values'}, {'start': '158.400', 'end': '165.319', 'text': 'indicating an over-rich condition,'}, {'start': '161.440', 'end': '168.239', 'text': 'the PCM will set DTC'}, {'start': '165.319', 'end': '170.760', 'text': 'P0172.  This condition can result from'}, {'start': '168.239', 'end': '173.200', 'text': 'various component failures or'}, {'start': '170.760', 'end': '175.360', 'text': 'malfunctions in the fuel delivery system'}, {'start': '173.200', 'end': '178.599', 'text': '.  Several'}, {'start': '175.360', 'end': '181.440', 'text': 'potential causes can lead to the'}, {'start': '178.599', 'end': '183.799', 'text': 'DTCP0172 code.  First, a fuel pump failure'}, {'start': '181.440', 'end': '186.280', 'text': '.  could restrict'}, {'start': '183.799', 'end': '188.720', 'text': 'fuel delivery to the engine.'}, {'start': '186.280', 'end': '191.319', 'text': 'Next, a faulty fuel injector'}, {'start': '188.720', 'end': '193.400', 'text': 'can cause an imbalance in'}, {'start': '191.319', 'end': '195.599', 'text': 'the air-fuel mixture,'}, {'start': '193.400', 'end': '198.120', 'text': 'contributing to excessive'}, {'start': '195.599', 'end': '200.080', 'text': 'fuel delivery.  Another common problem is'}, {'start': '198.120', 'end': '203.040', 'text': 'related to the fuel pressure regulator'}, {'start': '200.080', 'end': '204.920', 'text': '.  If it fails, it may not'}, {'start': '203.040', 'end': '207.120', 'text': 'properly regulate'}, {'start': '204.920', 'end': '209.560', 'text': 'fuel pressure, leading to a'}, {'start': '207.120', 'end': '212.159', 'text': 'rich mixture.  Additionally, problems with the'}, {'start': '209.560', 'end': '214.319', 'text': 'mass airflow (MAF) sensor'}, {'start': '212.159', 'end': '216.640', 'text': 'can significantly impact'}, {'start': '214.319', 'end': '219.439', 'text': 'air intake measurements, which in'}, {'start': '216.640', 'end': '222.120', 'text': 'turn affects fuel mixture calculations'}, {'start': '219.439', 'end': '224.480', 'text': '.  Additionally, any leak in'}, {'start': '222.120', 'end': '227.200', 'text': 'the intake manifold can introduce'}, {'start': '224.480', 'end': '229.920', 'text': 'unregulated air, causing a variation'}, {'start': '227.200', 'end': '232.120', 'text': 'in the air-fuel ratio.'}, {'start': '229.920', 'end': '234.159', 'text': 'Finally,'}, {'start': '232.120', 'end': '235.920', 'text': 'fuel delivery system failures or'}, {'start': '234.159', 'end': '238.760', 'text': 'valve timing issues can'}, {'start': '235.920', 'end': '241.280', 'text': 'contribute to this DTC, highlighting the'}, {'start': '238.760', 'end': '243.720', 'text': 'importance of a thorough diagnostic process'}, {'start': '241.280', 'end': '246.480', 'text': '.  Recognizing the symptoms'}, {'start': '243.720', 'end': '249.560', 'text': 'associated with DTC'}, {'start': '246.480', 'end': '252.480', 'text': 'P0172 is essential for'}, {'start': '249.560', 'end': '255.040', 'text': 'prompt action.  One of the most noticeable signs'}, {'start': '252.480', 'end': '256.840', 'text': 'is an irregular engine idle, which'}, {'start': '255.040', 'end': '259.639', 'text': 'can be disruptive during'}, {'start': '256.840', 'end': '261.880', 'text': 'normal driving.  Additionally,'}, {'start': '259.639', 'end': '264.720', 'text': 'drivers may experience'}, {'start': '261.880', 'end': '267.040', 'text': 'poor fuel economy,'}, {'start': '264.720', 'end': '268.600', 'text': 'as excess fuel leads to'}, {'start': '268.600', 'end': '273.639', 'text': 'inefficient combustion.  Increased emissions'}, {'start': '271.320', 'end': '276.440', 'text': 'are another critical indication that the'}, {'start': '273.639', 'end': '278.720', 'text': 'engine is running rich, which'}, {'start': '276.440', 'end': '281.120', 'text': 'can raise the ire of'}, {'start': '278.720', 'end': '284.199', 'text': 'environmental regulations and cause the vehicle to'}, {'start': '281.120', 'end': '286.680', 'text': 'fail emissions tests.  The'}, {'start': '284.199', 'end': '289.280', 'text': 'malfunction warning light or'}, {'start': '286.680', 'end': '291.280', 'text': '1000 will also illuminate on the dashboard,'}, {'start': '289.280', 'end': '294.320', 'text': 'signaling the driver to seek'}, {'start': '291.280', 'end': '296.880', 'text': 'immediate attention.  Eventually,'}, {'start': '294.320', 'end': '299.199', 'text': 'an overall loss of performance may become apparent'}, {'start': '296.880', 'end': '302.039', 'text': 'as the engine operates'}, {'start': '299.199', 'end': '304.560', 'text': 'inefficiently.  If these'}, {'start': '302.039', 'end': '306.960', 'text': 'symptoms appear, additional diagnostic steps should be taken'}, {'start': '304.560', 'end': '308.560', 'text': 'to investigate'}, {'start': '306.960', 'end': '312.120', 'text': 'DTC'}, {'start': '308.560', 'end': '314.720', 'text': 'P0172 as soon as possible.  The first'}, {'start': '312.120', 'end': '316.880', 'text': 'troubleshooting step involves a'}, {'start': '314.720', 'end': '320.240', 'text': 'series of precise actions to'}, {'start': '316.880', 'end': '323.720', 'text': 'diagnose the'}, {'start': '320.240', 'end': '326.360', 'text': 'P0172 code.  Start by starting the engine and'}, {'start': '323.720', 'end': '330.520', 'text': 'carefully maintaining'}, {'start': '326.360', 'end': '333.880', 'text': 'engine speed at approximately 3000 rpm'}, {'start': '330.520', 'end': '336.639', 'text': 'without applying any load.  It is crucial to'}, {'start': '333.880', 'end': '339.639', 'text': 'do this with the automatic transmission'}, {'start': '336.639', 'end': '342.800', 'text': 'in park or neutral for'}, {'start': '339.639', 'end': '345.759', 'text': 'manual transmissions.  Maintain this'}, {'start': '342.800', 'end': '348.440', 'text': 'RPM until the radiator fan'}, {'start': '345.759', 'end': '351.240', 'text': 'activates, indicating that the engine is'}, {'start': '348.440', 'end': '353.800', 'text': 'warm enough.  Once'}, {'start': '351.240', 'end': '356.720', 'text': 'the fan comes on, let the'}, {'start': '353.800', 'end': '360.280', 'text': 'engine idle and monitor'}, {'start': '356.720', 'end': '362.360', 'text': 'the long-term fuel trim.'}, {'start': '360.280', 'end': '366.240', 'text': 'If the long-term fuel trim'}, {'start': '362.360', 'end': '368.680', 'text': 'remains around 1.0, this'}, {'start': '366.240', 'end': '370.960', 'text': 'suggests that there may not be a'}, {'start': '368.680', 'end': '373.639', 'text': 'significant problem or that it is a'}, {'start': '370.960', 'end': '376.120', 'text': 'minor problem.  Conversely, if'}, {'start': '373.639', 'end': '378.479', 'text': 'a fault is indeed present,'}, {'start': '376.120', 'end': '380.800', 'text': 'expect to see significant variations in'}, {'start': '378.479', 'end': '383.160', 'text': 'the long-term fuel trim value'}, {'start': '380.800', 'end': '385.599', 'text': 'during this'}, {'start': '383.160', 'end': '388.000', 'text': 'observation period.  For the second troubleshooting step'}, {'start': '385.599', 'end': '390.560', 'text': ', you will need to perform'}, {'start': '388.000', 'end': '393.479', 'text': 'a road test.  Drive the'}, {'start': '390.560', 'end': '397.599', 'text': 'vehicle at a constant speed between'}, {'start': '393.479', 'end': '400.160', 'text': '15 and 75 mph, maintaining this'}, {'start': '397.599', 'end': '402.800', 'text': 'for at least 15 minutes while'}, {'start': '400.160', 'end': '405.880', 'text': 'closely observing the'}, {'start': '402.800', 'end': '408.440', 'text': 'long-term fuel trim parameter.  This'}, {'start': '405.880', 'end': '411.000', 'text': 'observation is crucial because if the'}, {'start': '408.440', 'end': '414.160', 'text': 'long-term fuel trim'}, {'start': '411.000', 'end': '416.759', 'text': 'remains around 1.0 zero.  During'}, {'start': '414.160', 'end': '420.240', 'text': 'this test it indicates that the problem has been'}, {'start': '416.759', 'end': '421.960', 'text': 'resolved or is very minor.  However, if you'}, {'start': '420.240', 'end': '423.840', 'text': 'notice that the value varies'}, {'start': '421.960', 'end': '426.319', 'text': 'significantly, it suggests that there is'}, {'start': '423.840', 'end': '429.520', 'text': 'likely a fault.  In cases where'}, {'start': '426.319', 'end': '431.360', 'text': 'frozen data is stored in the PCM, it'}, {'start': '429.520', 'end': '433.360', 'text': 'may be essential to replicate the'}, {'start': '431.360', 'end': '435.599', 'text': 'conditions that caused'}, {'start': '435.599', 'end': '440.800', 'text': 'diagnostically relevant data to be collected.  After clearing the DTC'}, {'start': '438.440', 'end': '443.160', 'text': 'by disconnecting the battery or using the'}, {'start': '440.800', 'end': '445.879', 'text': 'scan tool, drive the'}, {'start': '443.160', 'end': '450.440', 'text': 'vehicle at a constant speed'}, {'start': '445.879', 'end': '452.800', 'text': 'between 15 and 55 millibars per hour for at least'}, {'start': '450.440', 'end': '455.120', 'text': '40 minutes to facilitate'}, {'start': '452.800', 'end': '458.319', 'text': 'recovery of the'}, {'start': '455.120', 'end': '460.319', 'text': 'long-term fuel trim for accurate readings.'}, {'start': '458.319', 'end': '463.520', 'text': 'After completing the repairs'}, {'start': '460.319', 'end': '466.479', 'text': 'associated with DTC'}, {'start': '463.520', 'end': '469.680', 'text': 'P0172, it is crucial to perform a'}, {'start': '466.479', 'end': '472.400', 'text': 'final verification process.  Start by'}, {'start': '469.680', 'end': '475.080', 'text': 'using the scan tool'}, {'start': '472.400', 'end': '477.800', 'text': 'to clear the DTC from the'}, {'start': '475.080', 'end': '480.440', 'text': "powertrain control module's memory."}, {'start': '477.800', 'end': '482.960', 'text': 'After this, it is essential to monitor'}, {'start': '480.440', 'end': '486.440', 'text': 'the vehicle for any recurrence'}, {'start': '482.960', 'end': '488.720', 'text': 'of the DTC during subsequent driving cycles'}, {'start': '486.440', 'end': '491.520', 'text': '.  Confirm that the vehicle is'}, {'start': '488.720', 'end': '494.720', 'text': 'operating properly without'}, {'start': '491.520', 'end': '497.360', 'text': 'any check engine lights on.'}, {'start': '494.720', 'end': '500.120', 'text': 'A thorough road test should be performed'}, {'start': '497.360', 'end': '502.759', 'text': 'to simulate'}, {'start': '500.120', 'end': '505.800', 'text': 'normal driving conditions, providing an'}, {'start': '502.759', 'end': '508.319', 'text': 'opportunity to observe long-term'}, {'start': '505.800', 'end': '511.560', 'text': 'fuel trim behavior again'}, {'start': '508.319', 'end': '514.560', 'text': '.  Pay attention to whether the'}, {'start': '511.560', 'end': '517.560', 'text': 'value stabilizes, indicating a'}, {'start': '514.560', 'end': '520.320', 'text': 'successful resolution of the rich'}, {'start': '517.560', 'end': '523.279', 'text': 'fuel condition.  Checking all of these'}, {'start': '520.320', 'end': '525.800', 'text': 'factors ensures an effective'}, {'start': '523.279', 'end': '529.519', 'text': 'and lasting repair. To effectively prevent'}, {'start': '525.800', 'end': '531.080', 'text': 'DTC P0172 from recurring,'}, {'start': '529.519', 'end': '533.680', 'text': 'implement'}, {'start': '531.080', 'end': '535.640', 'text': 'regular maintenance procedures, focusing'}, {'start': '533.680', 'end': '538.200', 'text': 'specifically on the'}, {'start': '535.640', 'end': '540.920', 'text': 'fuel system and air intake components'}, {'start': '538.200', 'end': '543.200', 'text': '.  Schedule periodic checks'}, {'start': '540.920', 'end': '545.440', 'text': 'to monitor fuel trim values'}, {'start': '543.200', 'end': '548.160', 'text': ', as this will help'}, {'start': '545.440', 'end': '550.200', 'text': 'identify emerging problems'}, {'start': '548.160', 'end': '552.560', 'text': 'before they become more'}, {'start': '550.200', 'end': '554.839', 'text': 'significant failures.  It is also advisable to'}, {'start': '552.560', 'end': '556.959', 'text': 'clean fuel injectors'}, {'start': '554.839', 'end': '559.240', 'text': 'regularly, as'}, {'start': '556.959', 'end': '561.839', 'text': 'clogged injectors can lead to'}, {'start': '559.240', 'end': '564.519', 'text': 'inadequate fuel delivery and a richer'}, {'start': '561.839', 'end': '566.399', 'text': 'fuel mixture.  Make sure'}, {'start': '564.519', 'end': '569.040', 'text': 'the air filter is checked and'}, {'start': '566.399', 'end': '571.360', 'text': 'replaced if necessary, as a'}, {'start': '569.040', 'end': '573.640', 'text': 'blocked air intake could'}, {'start': '571.360', 'end': '575.279', 'text': 'adversely affect the air-'}, {'start': '573.640', 'end': '577.880', 'text': 'fuel ratio.'}, {'start': '575.279', 'end': '579.800', 'text': 'Finally, routine inspections'}, {'start': '577.880', 'end': '582.320', 'text': 'of sensor functions,'}, {'start': '579.800', 'end': '584.920', 'text': 'including air-fuel ratio sensors'}, {'start': '582.320', 'end': '587.360', 'text': 'and'}, {'start': '584.920', 'end': '589.360', 'text': 'manifold absolute pressure sensors, can be'}, {'start': '587.360', 'end': '592.040', 'text': 'instrumental in detecting problems'}, {'start': '589.360', 'end': '594.760', 'text': 'early and ensuring'}, {'start': '592.040', 'end': '597.959', 'text': 'optimal engine performance.  In'}, {'start': '594.760', 'end': '601.360', 'text': 'conclusion, understanding DTC'}, {'start': '597.959', 'end': '603.839', 'text': 'P0172 is essential not only to address'}, {'start': '601.360', 'end': '606.720', 'text': 'current problems, but also to'}, {'start': '603.839', 'end': '608.880', 'text': 'maintain the overall health of the vehicle.'}, {'start': '606.720', 'end': '611.720', 'text': 'Recognizing the role the'}, {'start': '608.880', 'end': '613.360', 'text': 'powertrain control module plays, along with the'}, {'start': '611.720', 'end': '616.360', 'text': 'importance of sensors in'}, {'start': '613.360', 'end': '618.959', 'text': 'fuel-air management, is'}, {'start': '616.360', 'end': '621.240', 'text': 'crucial for effective diagnostics.'}, {'start': '618.959', 'end': '623.959', 'text': 'Regular monitoring of'}, {'start': '621.240', 'end': '626.160', 'text': 'fuel trim values \u200b\u200bcan serve as'}, {'start': '623.959', 'end': '629.160', 'text': 'an early detection method for'}, {'start': '626.160', 'end': '631.680', 'text': 'faults, allowing for'}, {'start': '629.160', 'end': '634.920', 'text': 'proactive repairs.  The troubleshooting steps'}, {'start': '631.680', 'end': '637.760', 'text': 'outlined in this presentation'}, {'start': '634.920', 'end': '640.600', 'text': 'provide a structured approach that'}, {'start': '637.760', 'end': '643.000', 'text': 'technicians can follow to ensure'}, {'start': '640.600', 'end': '645.519', 'text': 'accurate and thorough'}, {'start': '643.000', 'end': '648.040', 'text': 'problem diagnosis.'}, {'start': '645.519', 'end': '650.480', 'text': 'Finally, emphasizing'}, {'start': '648.040', 'end': '653.240', 'text': 'preventative maintenance can extend'}, {'start': '650.480', 'end': '657.399', 'text': 'vehicle life while reducing the likelihood'}, {'start': '653.240', 'end': '660.680', 'text': 'of DTC recurrence.  Addressing'}, {'start': '657.399', 'end': '663.200', 'text': 'P0172 efficiently and effectively'}, {'start': '660.680', 'end': '666.440', 'text': 'ensures the Honda Accord operates at'}, {'start': '663.200', 'end': '669.160', 'text': 'optimal performance, reducing emissions'}, {'start': '666.440', 'end': '671.920', 'text': 'and improving'}, {'start': '669.160', 'end': '675.880', 'text': 'fuel economy.  Give it a like and subscribe to the'}, {'start': '671.920', 'end': '675.880', 'text': 'channel.  See you next time.  M.'}]