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・Fair and transparent pricing

Get a quote

What others are asking

Q: Fuel spills out when fueling, even if the tank is near empty. What's happening?

Hi There, What you are describing sounds like you may have a faulty purge solenoid in your EVAP system. Your car has a small purge valve called a purge solenoid that controls the venting of fumes from the fuel tank...

Q: My instrument cluster is not telling me my speed and mileage

It sounds like your speed sensor on the back of the transmission has failed. I would certainly recommend having it professionally tested to verify this diagnosis but this is the most likely cause. If the gauge cluster is still displaying...

Q: What does the Continuously Variable Transmission (CVT) Check warning light mean?

If your car has a Continuously Variable Transmission (CVT), there is a warning light in the dash designed to come on if a malfunction is detected. However, the light should come on briefly during the cranking process. It shouldn’t stay...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...