Tacoma - OVTUNE - VFTUNER - Update Info and Original Development

Ok!
You must be hooked up to the truck with ignition on but truck off(thats 2 clicks of start button)
Turn on tech stream
Connect to vehichle
System Select
You will see engine and transmission
Double click engine and look down you will see an icon that looks like the check engine light click it to clear DTCs
Go back double click transmission and do the same thing

 

Anyone know if you can get rid of flashing seatbelt icon as well? I disabled the chime but now that flashing light it annoying as hell

 

Tech stream is a Toyota program/software usually used by techs at your dealership to gain access and certain features to your vehicle. It is a separate program not related to the tune.
Though with that said ‘some’ trucks have issues not clearing the learned values from previous tunes such as myself and using this fixed it for me.

 

Makes sense. I do the same sometimes and the difference in commuting mpgs matches what you stated earlier

 

Pretty sure you can only do the chime. Unless you use some tape or rip out the dash and unplug stuff

 

Thats unfortunate. Well at least that annoying chime is gone. Who knew tech stream was so useful

 

This is like the entire point of ts lol

 

While we're on the topic, can any of the OBD apps (fusion, etc.) clear DTC values?

 

As far as i know Tech stream is the only way. It was believed unplugging the battery for 10minutes would reset them but another user pulled up an article from Toyota proving that is not true.

 

Why are you guys clearing via dtc? You're supposed to clear ecu/TCU in utilities>memory>reset. DTC diagnostic trouble codes which doesn't clear anything besides trouble codes.

 

^ this. You can do DTC reset in pcm flash / toy flash. Memory reset you gotta do with TS. This resets the learned trim values.

 

Anyone wana guide us on how to get to that area? I cant seem to find it. Still confused why my truck drives better after clearing dtc for engine/transmission...

 

Yeah all the other tunes were okay for me. I changed my crank shaft sensor it had the round hashtag mark on it but the truck idles way smoother and no rough or bouncy idle. I don’t have the 5,10,15,20,25% throttle and no response anymore. Also with gear lock you can’t use ect around town it will not downshift at all unless you do it by s mode. Did you check your transmission fluid?

 

I made the mistake of clearing learned values 30 miles after I flashed 91 gearlock and it really went bad after that. Truck completely changed had no power and no response at all. Not doing that again.
I reflashed and it went back to 91 craziness

 

Well after i cleared dtc for engine/trans i got throttle responce back and no more dead pedle. Ill see how it is tomorrow just to make sure im not crazy. Hopefully someone can chime in on the steps to get to the fuel trim clearing as i cant find it on my ts.

 

I thought you have to clear learned values? Didn’t know about clearing dtc

 

Thanks no one
Ill give this a try tomorrow.

 

@OVTune x2.

 

The 1.05 performance tip in doesn’t seem to be “dangerous” it’s more of a nuisance

 

Something is not right here. If you did in fact clear learned values, reflashing the tune will not bring it back.