Skip the auto shop - Our mechanics make house calls

Q: my honda fit continously flicks on drive gear when driving.auto diagonostic machine says output shaft speed.sensor

asked by on

i have a honda fit 2001.At first my light for drive started flicking when driving it and it began to lose powwr.when drivin on 60km/hr rev count wil.be 300rpm.i took it for auto diagonistic and it had out put speeed sensor error.i was advised to change gear box .i bought a second hand gearbox but the problem is still persisting.the drive light still flicking.error code nw saying inputshaft.wen starting to drive you have press on.hard the accelarator for it to move.if you remove your foot on the accelarator pedal it looses power drastically.what could be my problem and also how can i fix it.on.asking the mechanic who mounted the second gearbox he put wrong oil ie ATF instead of CVT.could it be the problem.does wrong oil.also affect speed sensors or its some thing different.

My car has 150000 miles.
My car has an automatic transmission.

A: Hi and thanks for contacting YourMechanic. ...

Hi and thanks for contacting YourMechanic. It won't matter what type of oil was put in the gear box as long as the viscosity was the same. You can try replacing the oil and see if it makes any difference, but most likely not. There are two sensors on the transmission, the output shaft sensor VSS (vehicle speed sensor) and the input shaft speed sensor. The input shaft speed sensor tells the computer how fast the transmission is input speed is compared to the output speed. I recommend replacing the input shaft speed sensor. If you need further assistance diagnosing your vehicle, then seek out a professional, such as one from YourMechanic, to help you with your sensor.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: What may be the cause of the Check Engine Light not going off

Hi. When the Check Engine Light is on it is notifying you that there is an active trouble code present. These codes can go off for literally hundreds of reasons. You will need to have the vehicle hook up to...

Q: Speedometer stops on 40 mph until driving for 20 minutes and then regains correct speed on the speedometer with no other noticeable issues.

Hi there. The issue with your speedometer not working properly is the transmission output shaft speed sensor has a faulty pickup or broken wire inside it. The speed sensor has a magnet that reads between teeth on a gear within...

Q: Car will not move in any gear engine sounds fine 2007 Nissan Murano

Hi there - the P0746 problem code indicates low hydraulic pressure internal to the transmission. It can also indicate failed speed sensors inside the transmission. I would recommend a transmission inspection by a mobile, professional mechanic, such as one from...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.