Vitz Transmission Issue (likely)

[wajihakamran2005]

Dear S. Iqbal

Simply Reboot the Car Programmer/ software by just unplugging the Battery terminals like:

1. Remove -ve Terminal first.
2. Remove the +ve Terminal.
   after 5 minutes,
3. Plug in the +ve Terminal first.
4. Plug in -ve Terminal.

For any issue u can call me at 03339611802

Regards,

Kamran

[waqasjamil]

Check Fuel pump... It could be due to low fuel pressure when you need it while pressing the pedal.

[Xulfiqar]

you need to recalibrate the throttle. A toyota tech can do it for you

[s.iqbal]

So what's my plan of action here:

1. I go to Toyota motors and ask them to scan my car for codes
2. If the code specifies a problem, I look into it
3. If not, I ask Toyota to recalibrate my throttle
4. If that too doesn't work I go for an accelerator sensor change
5. If that doesn't work I conclude it's my transmission box after all

Am I missing anything?

[Einstein]

@xulfiqar has spoken so follow his advise as he is the most techy guy around here.

Scanning your car is a good option nonetheless.

[rajaatta]

you need to recalibrate the CVT oil pressure and Deceleration/ Acceleration sensor calibration to solve this issue..

[Xulfiqar]

you mean start clutch? Because there is no acceleration and deceleration sensor that you speak of?

[s.iqbal]

Hey this is getting confusing. Let me try a few things out and see if they make a difference. Thanks a lot every single one of you!

[margallar]

cvt recalibration? that just takes a minutes if you have the correct scan tool

[syncview]

you mean start clutch? Because there is no acceleration and deceleration sensor that you speak of?

the name is zero point calibration in Toyota world

[Xulfiqar]

yep thats it.

[StrikerX]

Zero point calibratiion takes only a few minutes, did it on my axio via toyota techstream.

[margallar]

is it safe to use a rotary buffer to de-rust the underbody, looks don't really matter, i want to rubber coat it, but i want it to be rust free

[s.iqbal]

So that's what I gotta do? Zero point calibration?

[rajaatta]

[QUOTE=Xulfiqar;4408065]you mean start clutch? Because there is no acceleration and deceleration sensor that you speak of?[/QUOTEyup it is zero point calibration if you dont do it and reset the transmission parameters then the acceleration sensor learning error code will pop up . so in my view first he had to reset the transmission setting and then calibrate the CVT Start and zero point calibration on a flat balanced surface to get results.

[syncview]

you don't need to reset. . recalibration does everything

[Xulfiqar]

[QUOTE=Xulfiqar;4408065]you mean start clutch? Because there is no acceleration and deceleration sensor that you speak of?[/QUOTEyup it is zero point calibration if you dont do it and reset the transmission parameters then the acceleration sensor learning error code will pop up . so in my view first he had to reset the transmission setting and then calibrate the CVT Start and zero point calibration on a flat balanced surface to get results.

the learn code pops up when you remove the throttle motor and do funky stuff with it like clean it and then pray it works. The ECU fails to see the feedback. Hooked on a TS it will do all the job for you.

[delucid]

had the same problem...scanning showed throttle position sensor error..upon inspection sensor was found ok..infact there was a wire from the cng advancer coming to TPS..once that wire connection was removed everything was ok

Sent from my LG-P768 using PW Forums mobile app

[rajaatta]

[QUOTE=rajaatta;4411516]

the learn code pops up when you remove the throttle motor and do funky stuff with it like clean it and then pray it works. The ECU fails to see the feedback. Hooked on a TS it will do all the job for you.

usually the CEL wont lit up in the case of Toyota if some idiot open's and clean the TB assy and doesn't need relearning or calibration until some one reset's the transmission setting's from the utility tab in TC.. but in the case of Nissan some one messes with the throttle and the ECU show's the Middle finger along with improper idling as well if it is done improperly without CS.

[Xulfiqar]

It will pop up - atta sb - just takes longer.