I replaced the output shaft sensor. Do I need to reset the code?
Hello i had a code to replace the output shaft sensor. So i did do that.and still the same problem do i need to reset the code. shifting is prolonged between 1st and second let off the gas and it shifts into 2nd what else can i check as i work on my own cars unless I need to take it in thank you Sean
My car has 18000 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Try removing the battery cables and letting the computer sit for about 1 minute and then hook up the cables or if you have a scanner that can erase the codes. This will clear the engine light and codes to a pending status. If the engine light comes back on for the same issues, then there could be a break within the wiring harness to the vehicle speed sensor – VSS. If the light stays off, then check the condition of the shift quality when driving your vehicle. If the shifting goes back to normal, then it is solved. If the shifting is still abnormal, then the downshift solenoid could be staying on causing the pump pressure to override the second gear until the pump overrides the downshift solenoid pressure. If you need further assistance with your transmission shifting late, then seek out a professional, such as one from Your Mechanic, to help you.
How to Identify and Fix Common car Problems ?
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Common signs include harsh or improper shifting, cruise control not working, and the Check Engine Light coming on.
The OBD scanner shows the code P0720 when the PCM detects an Output Speed Sensor Service malfunction. If there is a problem with the output shaft or the circuit, or the engine and input shaft speed are at an RPM that is not in sync with the output shaft speed, the vehicle`s computer stores the error code P0720.
Its proper functioning depends on the data from the transmission speed sensors. If it fails to work, then it means the sensors have malfunctioned. The PCM will transmit an error code to ECU, which will shut down.
After the Repair
First, make a short run around the parking lot or just a short distance, and check for leaks. Then, on a longer test drive, make sure the check engine light doesn`t come back on and speed-related systems are working properly again.
After the wheel speed sensor is replaced, the ABS and traction control lights should go out. In the event that they don`t, you will need to take it to a certified mechanic to have them reset the vehicle`s computer.
The speedometer sensor has no bearing on the starting process of the vehicle. Unless it`s attached to some safety function. In most cases (95%) you`ll have no issue starting up a car without a speedometer sensor.
Disconnect the sensor from the housing on the transmission, as indicated in the repair manual for your car. Disconnect the sensor`s wire coupling. Using the multimeter`s voltmeter connect the probes to the ground and reference wires in the connector. If no voltage is received, the sensor is faulty.
The P0725 code indicates that your transmission control module (TCM) hasn`t received a valid engine speed signal from the engine control module (ECM), whether that means that it hasn`t received any signal at all or it means the signal was in some way faulty.
Common signs include harsh or improper shifting, cruise control not working, and the Check Engine Light coming on.
One of the most common issues is gear slippage. This occurs because the TCM is not giving the correct commands to shift, which can cause sudden shifting or not shifting at all. Another common symptom is failure to accelerate as usual. If your vehicle cannot change gears correctly, your car`s acceleration will suffer.
Common signs include harsh or improper shifting, cruise control not working, and the Check Engine Light coming on.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
I replaced the output shaft sensor. Do I need to reset the code?
ANSWER : Try removing the battery cables and letting the computer sit for about 1 minute and then hook up the cables or if you have a scanner that can erase the codes. This will clear the engine light and codes to a pending status. If the engine light comes back on for the same issues, then there could be a break within the wiring harness to the vehicle speed sensor – VSS. If the light stays off, then check the condition of the shift quality when driving your vehicle. If the shifting goes back to normal, then it is solved. If the shifting is still abnormal, then the downshift solenoid could be staying on causing the pump pressure to override the second gear until the pump overrides the downshift solenoid pressure. If you need further assistance with your transmission shifting late, then seek out a professional, such as one from Your Mechanic, to help you.
Read Full Q/A … : I replaced the output shaft sensor. Do I need to reset the code?
check engine light O2 sensor already replaced same codes still popping up after replacing old O2 sensor
ANSWER : Hi there. What you received from the parts store was a code retrieval, not a diagnostic. The codes are set when a fault is detected against normal operating parameter. The computer does not know what caused the fault, only that the fault meets the criteria for this code to set. There could be a problem in the wire harness, converter, or the ECM. The code and data are needed to properly assess the direction that a diagnosis needs. I strongly suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a check engine light inspection.
Read Full Q/A … : I replaced the output shaft sensor. Do I need to reset the code?
I have a p0171 code on my ford ranger 2.5 and have replaced fuel filter maf sensor, iac sensor, fixed vacuum leaks, replaced fuel
ANSWER : Hello there. You might to read this article about the P0171 OBD-II trouble code; as it will give you ideas on causes and possible solutions.
Read Full Q/A … : I replaced the output shaft sensor. Do I need to reset the code?
It threw a code 21 , throttle position sensor bad code. i replaced it and the code went away but i still have no spark.
ANSWER : Hello and thank you for contacting YourMechanic. The problems that you are encountering with your vehicle, could be caused by the harness to the Throttle Position Sensor (TPS) or the computer itself.
Check the harness to the TPS for any debris or any corrosion. Hook up a paperclip to the harness and turn on the key. Use a multimeter and check for voltage at the pins of the harness. Make sure that the ground on the sensor is grounded and has no resistance. If you find that the harness is having too much resistance, then I recommend having the main engine harness replaced. If you have replaced the harness and still have the same problems, then the computer will need to be flashed or replaced.
I recommend having a professional, like one from YourMechanic, come to your home to diagnose your car’s no start condition before replacing any parts.
Read Full Q/A … : I replaced the output shaft sensor. Do I need to reset the code?
Diagnostic code read o2 sensor bad, replaced o2 sensor, cleared code but engine light came back on, is it caused by bad air filter
ANSWER : Hello there. Typically jump starting a vehicle doesn’t trigger an OBD-II error code. However, one of the most common misdiagnosis issues with the P-2270 is replacing the O2 sensor before diagnosing if there are any exhaust leaks. Obviously, you’ll want to check for the exhaust leaks first, repair the damaged component, and then clear the codes before scanning the vehicle again. Sometimes the electrical harness attached to the O2 sensor is damaged or dirty which will also trigger this error code. The noise and vibration may be an indicator of a loose exhaust pipe, which may be the source of the error code staying on. If you need any help, have a technician from YourMechanic come to your home or office to diagnose your Check Engine Light and make the necessary repairs.
Read Full Q/A … : I replaced the output shaft sensor. Do I need to reset the code?
My code reader says I have a bad mass air flow sensor ans crank shat sensor test drive ran better shut off & engine Lt. Same code
ANSWER : Hi there. The problem you are describing, sounds like you may have a poor connection in the connector at the mass airflow sensor. Although, sometimes aftermarket parts do not perform as well as factory (OEM) parts. Check for corrosion and/or wide spacing in the terminal ends. Compare the terminal ends in the connector using a flashlight to see better. The terminals can be tightened. If you are not comfortable with doing that, a replacement pigtail (connector) is available. You vehicle may require further diagnosis performed with a scanner that provides parameters that can be viewed as the fault occurs. If that is the case, I recommend having your vehicle’s electrical circuits inspected in order to pinpoint the underlying fault.
Read Full Q/A … : I replaced the output shaft sensor. Do I need to reset the code?
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ANSWER : The code P0405 and a rough idle is most likely due to carbon getting into the EGR pintle. This will hold the EGR open. When you are getting the rough idle you should shut off engine and remove EGR valve. Check to see if carbon is holding the pintle open. If it is then you will have to remove the carbon from the pintle. Then try and clean out the EGR passages by scrapping them using a round wire brush. Afterwards, start the engine for a few seconds with valve removed to blow out loose carbon. You should then spray a small amount of carbon cleaner into the passages to dissolve the carbon. Lastly, reinstall the EGR and reset the light and codes.
If you’d like assistance with this, consider YourMechanic, as a certified professional can come to the vehicles locations to perform these checks and properly diagnose your Check Engine Light.
Read Full Q/A … : I replaced the output shaft sensor. Do I need to reset the code?
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ANSWER : Hi there. You might find this article we’ve written and posted here on our website very helpful in helping to diagnose an intake air temperature sensor. The component is called either an IAT (Intake Air Temperature) or Air Change Temperature (ACT) sensor, but the symptoms are virtually identical. Without being there to inspect your car personally, this is really the best advice we can offer. Thanks.
Read Full Q/A … : I replaced the output shaft sensor. Do I need to reset the code?
