DTC P0496: Evaporative Emission System High Purge Flow Detected - Honda Accord 2012-2017
DIY Honda Garage
[{'start': '1.120', 'end': '8.040', 'text': 'Welcome to the DIY Honda Garage'}, {'start': '3.960', 'end': '10.719', 'text': 'channel. The DTC code'}, {'start': '8.040', 'end': '13.759', 'text': 'P0496 indicates a fault within the'}, {'start': '10.719', 'end': '17.119', 'text': 'evaporative emission evap system of the'}, {'start': '13.759', 'end': '21.840', 'text': 'Honda Accord models manufactured between'}, {'start': '17.119', 'end': '24.160', 'text': '2012 and 2017. This system is crucial'}, {'start': '21.840', 'end': '26.960', 'text': 'for controlling fuel vapor emissions'}, {'start': '24.160', 'end': '30.199', 'text': "from the vehicle's fuel tank. When the"}, {'start': '26.960', 'end': '33.200', 'text': 'evap canister purge valve is functioning'}, {'start': '30.199', 'end': '36.000', 'text': 'correctly, it allows fuel vapors to be'}, {'start': '33.200', 'end': '39.120', 'text': 'drawn into the engine for combustion,'}, {'start': '36.000', 'end': '41.840', 'text': 'aiding in emissions control. However,'}, {'start': '39.120', 'end': '44.800', 'text': 'when this valve becomes stuck open or'}, {'start': '41.840', 'end': '45.800', 'text': 'experiences abnormal flow, it triggers'}, {'start': '44.800', 'end': '48.879', 'text': 'the'}, {'start': '45.800', 'end': '51.520', 'text': 'P0496 code. The issue can lead to'}, {'start': '48.879', 'end': '53.680', 'text': 'increased emissions and potential engine'}, {'start': '51.520', 'end': '55.520', 'text': 'performance problems.'}, {'start': '53.680', 'end': '58.320', 'text': 'Understanding the function of the'}, {'start': '55.520', 'end': '60.719', 'text': 'components involved is essential in'}, {'start': '58.320', 'end': '63.440', 'text': 'diagnosing and rectifying this issue'}, {'start': '60.719', 'end': '66.960', 'text': 'effectively. The evaporative emission'}, {'start': '63.440', 'end': '69.520', 'text': 'evap systems primary role is to capture'}, {'start': '66.960', 'end': '73.040', 'text': 'and temporarily store fuel vapor from'}, {'start': '69.520', 'end': '76.159', 'text': 'the fuel tank. This vapor is held in the'}, {'start': '73.040', 'end': '79.200', 'text': 'evap canister which is situated near the'}, {'start': '76.159', 'end': '82.080', 'text': 'fuel tank. The main component involved'}, {'start': '79.200', 'end': '84.560', 'text': 'in this system is the evap canister'}, {'start': '82.080', 'end': '87.040', 'text': 'purge valve which is responsible for'}, {'start': '84.560', 'end': '90.000', 'text': 'allowing the vapor to flow into the'}, {'start': '87.040', 'end': '93.759', 'text': 'engine for combustion. The powertrain'}, {'start': '90.000', 'end': '96.159', 'text': 'control module PCM regulates this valve'}, {'start': '93.759', 'end': '99.600', 'text': 'by adjusting its duty cycle based on'}, {'start': '96.159', 'end': '101.680', 'text': 'engine conditions. This precise control'}, {'start': '99.600', 'end': '104.720', 'text': 'helps maintain optimal engine'}, {'start': '101.680', 'end': '107.280', 'text': 'performance while minimizing emissions.'}, {'start': '104.720', 'end': '110.479', 'text': 'A malfunction such as the purge valve'}, {'start': '107.280', 'end': '114.479', 'text': 'being stuck open can create a high purge'}, {'start': '110.479', 'end': '117.040', 'text': 'flow condition triggering the P0496'}, {'start': '114.479', 'end': '118.280', 'text': 'error code. The primary possible cause'}, {'start': '117.040', 'end': '121.680', 'text': 'of the'}, {'start': '118.280', 'end': '124.960', 'text': 'P0496 code is the evap canister purge'}, {'start': '121.680', 'end': '127.680', 'text': 'valve being stuck open. This could lead'}, {'start': '124.960', 'end': '130.479', 'text': 'to the system allowing too much vapor to'}, {'start': '127.680', 'end': '133.760', 'text': 'enter the engine, resulting in abnormal'}, {'start': '130.479', 'end': '137.680', 'text': 'emissions. Additionally, a malfunction'}, {'start': '133.760', 'end': '140.160', 'text': 'in the fuel tank pressure FTP sensor may'}, {'start': '137.680', 'end': '142.400', 'text': 'also contribute to this issue as it'}, {'start': '140.160', 'end': '145.200', 'text': 'monitors the pressure conditions within'}, {'start': '142.400', 'end': '147.760', 'text': 'the evaporative system. If the sensor'}, {'start': '145.200', 'end': '151.040', 'text': 'fails to operate normally, it could'}, {'start': '147.760', 'end': '153.280', 'text': 'misreport the system state to the PCM.'}, {'start': '151.040', 'end': '155.519', 'text': 'Lastly, there may be issues related to'}, {'start': '153.280', 'end': '158.400', 'text': 'the fuel tank pressure itself that can'}, {'start': '155.519', 'end': '161.200', 'text': 'affect system operation, further'}, {'start': '158.400', 'end': '163.720', 'text': 'complicating the diagnostic process. The'}, {'start': '161.200', 'end': '167.040', 'text': 'most noticeable symptom of the'}, {'start': '163.720', 'end': '169.519', 'text': 'P0496 code is the illumination of the'}, {'start': '167.040', 'end': '172.959', 'text': 'engine light or malfunction indicator'}, {'start': '169.519', 'end': '175.040', 'text': 'lamp m. This the first troubleshooting'}, {'start': '172.959', 'end': '178.160', 'text': 'step involves checking the function of'}, {'start': '175.040', 'end': '180.239', 'text': 'the evvap canister purge valve. Start by'}, {'start': '178.160', 'end': '183.120', 'text': 'assessing whether the purge valve is'}, {'start': '180.239', 'end': '185.440', 'text': 'opening as expected during operation and'}, {'start': '183.120', 'end': '189.120', 'text': 'ensure that the pulse signal sent to the'}, {'start': '185.440', 'end': '191.680', 'text': 'FTP sensor is detected properly. You'}, {'start': '189.120', 'end': '194.000', 'text': 'will perform a pulse test which involves'}, {'start': '191.680', 'end': '196.840', 'text': 'monitoring the duty cycle of the purge'}, {'start': '194.000', 'end': '199.360', 'text': 'valve to determine if it is functioning'}, {'start': '196.840', 'end': '202.159', 'text': "normally. It's critical to see a"}, {'start': '199.360', 'end': '205.120', 'text': 'consistent pulse as this indicates that'}, {'start': '202.159', 'end': '207.760', 'text': 'the valve is operating properly. If a'}, {'start': '205.120', 'end': '210.400', 'text': 'pulse does not exist, it may suggest'}, {'start': '207.760', 'end': '213.159', 'text': 'that the purge valve is stuck open,'}, {'start': '210.400', 'end': '215.840', 'text': 'which is a leading cause of the'}, {'start': '213.159', 'end': '218.080', 'text': 'P0496 code. Step two of the'}, {'start': '215.840', 'end': '221.360', 'text': 'troubleshooting process is to closely'}, {'start': '218.080', 'end': '224.080', 'text': 'monitor the readings from the FTP sensor'}, {'start': '221.360', 'end': '226.959', 'text': "during the vehicle's operation. This"}, {'start': '224.080', 'end': '229.360', 'text': 'step is crucial because any fluctuating'}, {'start': '226.959', 'end': '232.200', 'text': 'readings from this sensor should move'}, {'start': '229.360', 'end': '234.959', 'text': 'from negative pressure to atmospheric'}, {'start': '232.200', 'end': '237.360', 'text': 'pressure, particularly after turning off'}, {'start': '234.959', 'end': '240.080', 'text': 'the ignition or pressing the engine'}, {'start': '237.360', 'end': '242.720', 'text': 'start stop button. If there is no'}, {'start': '240.080', 'end': '245.439', 'text': 'fluctuation detected, the system'}, {'start': '242.720', 'end': '248.599', 'text': 'identifies that the purge flow is not'}, {'start': '245.439', 'end': '252.080', 'text': 'operating correctly, leading to the'}, {'start': '248.599', 'end': '254.560', 'text': 'P0497 code instead. Ensuring that the'}, {'start': '252.080', 'end': '257.519', 'text': 'FTP sensors performance meets its'}, {'start': '254.560', 'end': '260.320', 'text': 'specifications is vital in diagnosing'}, {'start': '257.519', 'end': '262.960', 'text': 'whether the issue resides with it or the'}, {'start': '260.320', 'end': '265.520', 'text': 'purge valve. After repairs have been'}, {'start': '262.960', 'end': '267.400', 'text': "performed on the evap system, it's"}, {'start': '265.520', 'end': '270.320', 'text': 'essential to conduct a final'}, {'start': '267.400', 'end': '273.199', 'text': 'verification to ensure the issues have'}, {'start': '270.320', 'end': '275.040', 'text': 'been resolved. Start by inspecting that'}, {'start': '273.199', 'end': '277.840', 'text': 'all repairs have been thoroughly'}, {'start': '275.040', 'end': '282.160', 'text': 'completed and that no diagnostic trouble'}, {'start': '277.840', 'end': '284.720', 'text': "codes, DTC's, remain active. Next,"}, {'start': '282.160', 'end': '286.639', 'text': 'perform a test drive under conditions'}, {'start': '284.720', 'end': '289.280', 'text': 'similar to those which may have'}, {'start': '286.639', 'end': '291.919', 'text': 'triggered the original fault. Monitoring'}, {'start': '289.280', 'end': '294.560', 'text': 'the system during this test will verify'}, {'start': '291.919', 'end': '297.280', 'text': 'if the repairs have fixed the high purge'}, {'start': '294.560', 'end': '300.400', 'text': 'flow condition or whether further issues'}, {'start': '297.280', 'end': '303.919', 'text': 'need addressing. If all systems operate'}, {'start': '300.400', 'end': '305.880', 'text': 'normally and the MIL remains off, then'}, {'start': '303.919', 'end': '308.560', 'text': 'the repairs can be considered'}, {'start': '305.880', 'end': '311.680', 'text': 'successful. Preventive maintenance is'}, {'start': '308.560', 'end': '312.759', 'text': 'key in avoiding recurring issues related'}, {'start': '311.680', 'end': '316.720', 'text': 'to the'}, {'start': '312.759', 'end': '319.360', 'text': 'PO496 code. Regular checks of the EVVAP'}, {'start': '316.720', 'end': '323.240', 'text': 'system, including the purge valve and'}, {'start': '319.360', 'end': '325.840', 'text': 'FTP sensor can prevent premature wear or'}, {'start': '323.240', 'end': '328.360', 'text': 'malfunction. Additionally, monitoring'}, {'start': '325.840', 'end': '331.039', 'text': 'the fuel system for leaks or pressure'}, {'start': '328.360', 'end': '333.919', 'text': 'abnormalities can also help maintain'}, {'start': '331.039', 'end': '336.560', 'text': 'system integrity and reduce the risk of'}, {'start': '333.919', 'end': '339.440', 'text': 'emissions related faults. Performing'}, {'start': '336.560', 'end': '342.080', 'text': 'routine engine diagnostics ensures that'}, {'start': '339.440', 'end': '345.199', 'text': 'any emerging issues are identified'}, {'start': '342.080', 'end': '347.840', 'text': 'before they escalate. By prioritizing'}, {'start': '345.199', 'end': '350.400', 'text': 'these preventive measures, owners can'}, {'start': '347.840', 'end': '352.600', 'text': 'keep their vehicles running efficiently'}, {'start': '350.400', 'end': '355.440', 'text': 'while promoting environmental'}, {'start': '352.600', 'end': '358.080', 'text': 'responsibility through lower emissions.'}, {'start': '355.440', 'end': '360.880', 'text': 'In conclusion, understanding the role of'}, {'start': '358.080', 'end': '364.080', 'text': 'the evap system and its components such'}, {'start': '360.880', 'end': '367.039', 'text': 'as the purge valve and FTP sensor is'}, {'start': '364.080', 'end': '370.199', 'text': 'vital for effective diagnostics.'}, {'start': '367.039', 'end': '373.520', 'text': 'Recognizing symptoms associated with the'}, {'start': '370.199', 'end': '376.000', 'text': 'P0496 code, including engine light'}, {'start': '373.520', 'end': '379.360', 'text': 'illumination and poor performance,'}, {'start': '376.000', 'end': '381.360', 'text': 'allows drivers to take timely action.'}, {'start': '379.360', 'end': '383.759', 'text': 'Following a structured troubleshooting'}, {'start': '381.360', 'end': '386.400', 'text': 'process, ensures that the underlying'}, {'start': '383.759', 'end': '388.639', 'text': 'issues are accurately identified and'}, {'start': '386.400', 'end': '390.880', 'text': 'addressed. Emphasizing preventive'}, {'start': '388.639', 'end': '394.080', 'text': 'maintenance further safeguards against'}, {'start': '390.880', 'end': '397.120', 'text': 'future DTC occurrences. By keeping the'}, {'start': '394.080', 'end': '399.680', 'text': 'evap system in optimal condition, owners'}, {'start': '397.120', 'end': '401.720', 'text': 'contribute to better vehicle performance'}, {'start': '399.680', 'end': '404.479', 'text': 'and reduced'}, {'start': '401.720', 'end': '408.400', 'text': 'emissions. Please like and subscribe to'}, {'start': '404.479', 'end': '408.400', 'text': 'the channel. See you next time.'}]