DTC P0451: FTP Sensor Circuit Range/Performance Problem - Honda Accord 2012-2017
DIY Honda Garage
[{'start': '1.120', 'end': '9.440', 'text': 'Welcome to the DIY Honda Garage channel.'}, {'start': '6.839', 'end': '12.480', 'text': 'DTCP0451 specifically indicates a'}, {'start': '9.440', 'end': '14.759', 'text': 'problem within the FTP sensor circuit,'}, {'start': '12.480', 'end': '17.760', 'text': 'which refers to the fuel tank pressure'}, {'start': '14.759', 'end': '19.760', 'text': 'sensor. This sensor plays a crucial role'}, {'start': '17.760', 'end': '22.080', 'text': 'in measuring the pressure inside the'}, {'start': '19.760', 'end': '24.800', 'text': 'fuel tank, aiding in the monitoring of'}, {'start': '22.080', 'end': '27.199', 'text': 'the evaporative emission system. An'}, {'start': '24.800', 'end': '30.800', 'text': 'accurate reading is essential for the'}, {'start': '27.199', 'end': '33.760', 'text': 'engine control module ECM to efficiently'}, {'start': '30.800', 'end': '36.719', 'text': 'manage fuel vapor and emissions control.'}, {'start': '33.760', 'end': '40.719', 'text': 'Honda Accord models from 2012 through'}, {'start': '36.719', 'end': '42.640', 'text': '2017 utilize an FTP sensor that'}, {'start': '40.719', 'end': '46.320', 'text': 'contributes to meeting stringent'}, {'start': '42.640', 'end': '48.480', 'text': 'environmental regulations. This DTC may'}, {'start': '46.320', 'end': '51.200', 'text': 'be triggered by various factors'}, {'start': '48.480', 'end': '53.920', 'text': 'impacting the sensors performance which'}, {'start': '51.200', 'end': '56.239', 'text': 'must be duly investigated. In the'}, {'start': '53.920', 'end': '58.559', 'text': 'following slides, we will delve into'}, {'start': '56.239', 'end': '61.520', 'text': 'detailed descriptions, troubleshooting'}, {'start': '58.559', 'end': '63.640', 'text': 'steps, and situational analysis to'}, {'start': '61.520', 'end': '68.080', 'text': 'address'}, {'start': '63.640', 'end': '68.080', 'text': 'DTCP0451. In summary,'}, {'start': '68.200', 'end': '74.479', 'text': 'DTCP0451 highlights a significant issue'}, {'start': '71.439', 'end': '76.479', 'text': 'with the FTP sensor circuit that has'}, {'start': '74.479', 'end': '79.280', 'text': 'important implications for vehicle'}, {'start': '76.479', 'end': '82.240', 'text': 'emissions control. Understanding the'}, {'start': '79.280', 'end': '84.520', 'text': 'diagnostic approach starting with basic'}, {'start': '82.240', 'end': '86.720', 'text': 'checks followed by detailed'}, {'start': '84.520', 'end': '89.520', 'text': 'troubleshooting is essential in'}, {'start': '86.720', 'end': '93.040', 'text': 'effectively addressing the fault. Each'}, {'start': '89.520', 'end': '96.240', 'text': 'step outlined from monitoring OBD status'}, {'start': '93.040', 'end': '98.479', 'text': 'to performing precautionary maintenance'}, {'start': '96.240', 'end': '101.680', 'text': 'illustrates a structured approach to the'}, {'start': '98.479', 'end': '104.320', 'text': 'problem-solving process. By effectively'}, {'start': '101.680', 'end': '106.159', 'text': 'applying these procedures, vehicle'}, {'start': '104.320', 'end': '109.200', 'text': 'owners can not only resolve the'}, {'start': '106.159', 'end': '111.840', 'text': 'immediate issue but also further their'}, {'start': '109.200', 'end': '115.399', 'text': 'understanding of vehicle systems and'}, {'start': '111.840', 'end': '118.799', 'text': 'promote ongoing maintenance. Ultimately,'}, {'start': '115.399', 'end': '121.799', 'text': 'prioritizing preventive measures ensures'}, {'start': '118.799', 'end': '124.159', 'text': 'enhanced vehicle longevity, improved'}, {'start': '121.799', 'end': '127.520', 'text': 'performance, and compliance with'}, {'start': '124.159', 'end': '129.840', 'text': 'environmental standards. The FTP sensor'}, {'start': '127.520', 'end': '132.000', 'text': 'or fuel tank pressure sensor is'}, {'start': '129.840', 'end': '135.120', 'text': 'instrumental in detecting the vapor'}, {'start': '132.000', 'end': '138.000', 'text': 'pressure in the fuel tank. Its location'}, {'start': '135.120', 'end': '140.800', 'text': 'is typically found near the top or side'}, {'start': '138.000', 'end': '142.959', 'text': 'of the fuel tank, facilitating accurate'}, {'start': '140.800', 'end': '147.200', 'text': 'pressure readings that are sent to the'}, {'start': '142.959', 'end': '149.840', 'text': 'engine control module, ECM. The ECM uses'}, {'start': '147.200', 'end': '152.000', 'text': 'this data to ensure optimal performance'}, {'start': '149.840', 'end': '154.480', 'text': 'of the evaporative emissions control'}, {'start': '152.000', 'end': '156.879', 'text': 'system, which helps minimize harmful'}, {'start': '154.480', 'end': '159.519', 'text': 'emissions released into the environment.'}, {'start': '156.879', 'end': '162.000', 'text': 'When the FTP sensor circuit exhibits'}, {'start': '159.519', 'end': '164.319', 'text': 'range or performance issues, it can'}, {'start': '162.000', 'end': '167.200', 'text': 'affect the overall vehicle performance'}, {'start': '164.319', 'end': '169.080', 'text': 'by causing failed emissions tests or'}, {'start': '167.200', 'end': '173.720', 'text': 'triggering warning lights on the'}, {'start': '169.080', 'end': '176.959', 'text': 'dashboard. Therefore, diagnosing DTC'}, {'start': '173.720', 'end': '179.840', 'text': 'P0451 is not only vital for regulatory'}, {'start': '176.959', 'end': '182.159', 'text': 'compliance, but also essential for'}, {'start': '179.840', 'end': '185.040', 'text': 'maintaining engine efficiency and'}, {'start': '182.159', 'end': '188.800', 'text': 'performance. Several possible causes may'}, {'start': '185.040', 'end': '188.800', 'text': 'lead to the activation of'}, {'start': '189.080', 'end': '194.959', 'text': 'DTCP0451. A faulty FTP sensor is a'}, {'start': '192.480', 'end': '197.040', 'text': 'primary suspect as it may fail to'}, {'start': '194.959', 'end': '200.480', 'text': 'provide accurate readings due to'}, {'start': '197.040', 'end': '203.040', 'text': 'internal damage or wear. Poor electrical'}, {'start': '200.480', 'end': '205.519', 'text': 'connections can also be problematic,'}, {'start': '203.040', 'end': '209.200', 'text': 'affecting the signal transmitted to the'}, {'start': '205.519', 'end': '212.319', 'text': 'ECM. Loose terminals at the FTP sensor'}, {'start': '209.200', 'end': '214.560', 'text': 'and the powertrain control module PCM'}, {'start': '212.319', 'end': '217.239', 'text': 'can lead to intermittent faults,'}, {'start': '214.560', 'end': '220.000', 'text': 'complicating the diagnostic'}, {'start': '217.239', 'end': '222.080', 'text': 'process. These connection issues can'}, {'start': '220.000', 'end': '225.360', 'text': 'often cause the sensor to appear'}, {'start': '222.080', 'end': '228.400', 'text': 'functional at times and fail at others,'}, {'start': '225.360', 'end': '231.200', 'text': 'incorrectly suggesting a sensor problem.'}, {'start': '228.400', 'end': '234.040', 'text': 'Lastly, intermittent circuit problems'}, {'start': '231.200', 'end': '235.720', 'text': 'may lead to erratic readings, prompting'}, {'start': '234.040', 'end': '238.720', 'text': 'DTC'}, {'start': '235.720', 'end': '242.159', 'text': 'P0451 to activate sporadically,'}, {'start': '238.720', 'end': '245.640', 'text': 'requiring thorough analysis to mitigate.'}, {'start': '242.159', 'end': '248.040', 'text': 'The symptoms accompanying'}, {'start': '245.640', 'end': '251.439', 'text': 'DTCP0451 can range from subtle'}, {'start': '248.040', 'end': '253.760', 'text': 'indications to more pronounced issues.'}, {'start': '251.439', 'end': '256.639', 'text': 'One of the most common symptoms is'}, {'start': '253.760', 'end': '259.120', 'text': 'incorrect fuel level readings, which may'}, {'start': '256.639', 'end': '262.160', 'text': 'lead to erroneous fuel planning and'}, {'start': '259.120', 'end': '264.479', 'text': 'potential engine performance drawbacks.'}, {'start': '262.160', 'end': '266.880', 'text': 'The check engine light is likely to'}, {'start': '264.479', 'end': '269.800', 'text': 'activate, alerting the driver to an'}, {'start': '266.880', 'end': '271.960', 'text': 'issue that warrants investigation.'}, {'start': '269.800', 'end': '275.360', 'text': 'Additionally, vehicles may face'}, {'start': '271.960', 'end': '278.080', 'text': 'difficulties passing emissions tests,'}, {'start': '275.360', 'end': '280.360', 'text': 'which can be particularly problematic in'}, {'start': '278.080', 'end': '282.960', 'text': 'regions with strict environmental'}, {'start': '280.360', 'end': '286.000', 'text': 'controls. It is important for vehicle'}, {'start': '282.960', 'end': '288.880', 'text': 'owners to recognize these symptoms early'}, {'start': '286.000', 'end': '292.160', 'text': 'to prevent further complications and to'}, {'start': '288.880', 'end': '295.400', 'text': 'address the FTP sensor issues promptly.'}, {'start': '292.160', 'end': '298.320', 'text': 'The first step in troubleshooting DTC'}, {'start': '295.400', 'end': '301.360', 'text': "PO451 involves preparing the vehicle's"}, {'start': '298.320', 'end': '303.600', 'text': 'diagnostic system. Begin by turning the'}, {'start': '301.360', 'end': '305.680', 'text': 'ignition switch to the on position,'}, {'start': '303.600', 'end': '308.720', 'text': 'which powers the necessary components'}, {'start': '305.680', 'end': '312.560', 'text': 'for diagnostic testing. Utilizing the'}, {'start': '308.720', 'end': '315.520', 'text': 'Honda diagnostic system, HDS, clear any'}, {'start': '312.560', 'end': '318.080', 'text': "existing DTC's. This allows a fresh"}, {'start': '315.520', 'end': '321.280', 'text': 'start to monitor the FTP sensors'}, {'start': '318.080', 'end': '323.759', 'text': 'performance accurately. Next, start the'}, {'start': '321.280', 'end': '327.039', 'text': 'engine and allow it to idle for 1'}, {'start': '323.759', 'end': '329.360', 'text': 'minute. This idling period is crucial as'}, {'start': '327.039', 'end': '332.240', 'text': 'it enables the system to stabilize and'}, {'start': '329.360', 'end': '335.440', 'text': 'collect relevant data regarding the FTP'}, {'start': '332.240', 'end': '337.759', 'text': 'sensor operation. Observing any changes'}, {'start': '335.440', 'end': '340.320', 'text': 'or discrepancies during this initial'}, {'start': '337.759', 'end': '342.639', 'text': 'check helps in effectively assessing the'}, {'start': '340.320', 'end': '344.120', 'text': "vehicle's current condition regarding"}, {'start': '342.639', 'end': '346.800', 'text': 'DTC'}, {'start': '344.120', 'end': '350.000', 'text': 'PO451. In the second troubleshooting'}, {'start': '346.800', 'end': '355.360', 'text': 'step, utilize the HDS to monitor the'}, {'start': '350.000', 'end': '355.360', 'text': 'onboard diagnostics OBD status for'}, {'start': '355.560', 'end': '361.039', 'text': 'DTCP0451. The diagnostic system will'}, {'start': '358.400', 'end': '364.160', 'text': 'provide insights into the status of the'}, {'start': '361.039', 'end': '367.759', 'text': 'FTP sensor circuit, indicating whether'}, {'start': '364.160', 'end': '370.560', 'text': 'the test result is failed, passed, or'}, {'start': '367.759', 'end': '373.440', 'text': 'not completed. If the system indicates'}, {'start': '370.560', 'end': '377.199', 'text': 'failed, it implies that immediate action'}, {'start': '373.440', 'end': '380.000', 'text': 'is necessary. namely replacing the FTP'}, {'start': '377.199', 'end': '383.520', 'text': 'sensor since it has confirmed a failure'}, {'start': '380.000', 'end': '386.479', 'text': 'in the circuit. Alternatively, if the'}, {'start': '383.520', 'end': '388.400', 'text': 'status is passed, this suggests that the'}, {'start': '386.479', 'end': '391.440', 'text': 'sensor and circuit are currently'}, {'start': '388.400', 'end': '394.000', 'text': 'operating correctly. In cases of not'}, {'start': '391.440', 'end': '396.639', 'text': 'completed, it is essential to keep the'}, {'start': '394.000', 'end': '399.919', 'text': 'engine idling until the status can be'}, {'start': '396.639', 'end': '402.479', 'text': 'reliably assessed, ensuring that all'}, {'start': '399.919', 'end': '405.759', 'text': 'conditions for testing have been met to'}, {'start': '402.479', 'end': '408.560', 'text': 'reflect accurate results. Should the HDS'}, {'start': '405.759', 'end': '410.800', 'text': 'indicate that the FTP sensor has failed,'}, {'start': '408.560', 'end': '414.319', 'text': 'the immediate course of action is to'}, {'start': '410.800', 'end': '416.880', 'text': 'replace the faulty FTP sensor. This'}, {'start': '414.319', 'end': '419.599', 'text': 'replacement requires careful removal of'}, {'start': '416.880', 'end': '422.560', 'text': 'the old sensor and installation of the'}, {'start': '419.599', 'end': '424.759', 'text': 'new one, ensuring all connections are'}, {'start': '422.560', 'end': '427.360', 'text': 'secure and free from'}, {'start': '424.759', 'end': '430.080', 'text': 'interference. Following the replacement,'}, {'start': '427.360', 'end': '433.199', 'text': 'it is necessary to perform a repair'}, {'start': '430.080', 'end': '435.759', 'text': 'verification process. This verification'}, {'start': '433.199', 'end': '438.479', 'text': 'step is crucial as it confirms the'}, {'start': '435.759', 'end': '440.960', 'text': 'effectiveness of the repair and ensures'}, {'start': '438.479', 'end': '444.639', 'text': 'that the system is operating correctly'}, {'start': '440.960', 'end': '447.680', 'text': 'post repair. Monitoring the OBD status'}, {'start': '444.639', 'end': '450.160', 'text': 'again with the HDS will help confirm'}, {'start': '447.680', 'end': '452.800', 'text': 'whether the issue has been resolved and'}, {'start': '450.160', 'end': '455.639', 'text': 'if the vehicle is performing optimally'}, {'start': '452.800', 'end': '458.639', 'text': 'with no further DTC'}, {'start': '455.639', 'end': '461.120', 'text': 'P0451 indications. Final repair'}, {'start': '458.639', 'end': '462.960', 'text': 'verification is a critical step in'}, {'start': '461.120', 'end': '465.759', 'text': 'ensuring that the repairs have'}, {'start': '462.960', 'end': '468.759', 'text': 'successfully resolved the issues tied to'}, {'start': '465.759', 'end': '468.759', 'text': 'DTCP0451.'}, {'start': '468.960', 'end': '474.080', 'text': 'First, turn the ignition switch to the'}, {'start': '471.520', 'end': '477.680', 'text': 'on position to prepare the system for'}, {'start': '474.080', 'end': '481.639', 'text': 'diagnostic functions. Next, reset the'}, {'start': '477.680', 'end': '485.360', 'text': 'powertrain control module PCM using the'}, {'start': '481.639', 'end': '488.160', 'text': 'HDS. This reset process is essential as'}, {'start': '485.360', 'end': '490.400', 'text': 'it clears any previous fault data stored'}, {'start': '488.160', 'end': '493.560', 'text': 'in the module, enabling it to'}, {'start': '490.400', 'end': '496.720', 'text': 'recalibrate and function correctly.'}, {'start': '493.560', 'end': '498.960', 'text': 'Subsequently, perform the PCM idle learn'}, {'start': '496.720', 'end': '501.120', 'text': 'procedure. Starting the engine and'}, {'start': '498.960', 'end': '504.479', 'text': 'allowing it to idle for a designated'}, {'start': '501.120', 'end': '507.560', 'text': 'period ensures that the PCM can gather'}, {'start': '504.479', 'end': '510.560', 'text': 'necessary data for optimal engine'}, {'start': '507.560', 'end': '512.760', 'text': 'performance. Finally, check the OBD'}, {'start': '510.560', 'end': '515.360', 'text': 'status for'}, {'start': '512.760', 'end': '517.760', 'text': 'DTCP0451 to confirm that the previous'}, {'start': '515.360', 'end': '520.560', 'text': 'problems have been addressed, ensuring'}, {'start': '517.760', 'end': '523.200', 'text': 'both vehicle efficiency and compliance'}, {'start': '520.560', 'end': '525.200', 'text': 'with emissions regulations. Implementing'}, {'start': '523.200', 'end': '527.120', 'text': 'preventive maintenance can play a'}, {'start': '525.200', 'end': '530.360', 'text': 'pivotal role in minimizing the'}, {'start': '527.120', 'end': '533.680', 'text': 'recurrence of DTC'}, {'start': '530.360', 'end': '535.920', 'text': 'P0451. Regular inspections of the FTP'}, {'start': '533.680', 'end': '538.640', 'text': "sensor should be part of the vehicle's"}, {'start': '535.920', 'end': '541.440', 'text': 'maintenance schedule, ensuring that any'}, {'start': '538.640', 'end': '544.160', 'text': 'signs of wear or damage are noted and'}, {'start': '541.440', 'end': '546.640', 'text': 'addressed promptly. Checking electrical'}, {'start': '544.160', 'end': '549.519', 'text': 'connections routinely can help prevent'}, {'start': '546.640', 'end': '551.839', 'text': 'issues related to poor connectivity or'}, {'start': '549.519', 'end': '555.600', 'text': 'loose terminals which can trigger the'}, {'start': '551.839', 'end': '558.560', 'text': 'DTC over time. Moreover, monitoring the'}, {'start': '555.600', 'end': '560.720', 'text': 'fuel system periodically is essential.'}, {'start': '558.560', 'end': '563.839', 'text': 'Ensuring that the entire system is'}, {'start': '560.720', 'end': '567.360', 'text': 'operating within expected parameters can'}, {'start': '563.839', 'end': '569.279', 'text': 'prevent stress on the FTP sensor. These'}, {'start': '567.360', 'end': '572.279', 'text': 'maintenance strategies not only'}, {'start': '569.279', 'end': '575.600', 'text': 'safeguard against DTC'}, {'start': '572.279', 'end': '577.800', 'text': 'P0451 but also enhance overall vehicle'}, {'start': '575.600', 'end': '579.920', 'text': 'reliability and'}, {'start': '577.800', 'end': '584.160', 'text': 'performance. Please like and subscribe'}, {'start': '579.920', 'end': '584.160', 'text': 'to the channel. See you next time.'}]