Tuning

[NMBruce]

Time for another question. I have been told that there is a good shop in Albuquerque that tunes 4Runners and other Toyota’s.

I want to put in a AGM X2 31M battery and my 2020 Tacoma has to be programmed to increase the voltage output. The Tacoma puts out about 13,9v and I was told it needs 14.4v. Toyota in 2020 put the control for the alternator output in the ECU or so I have been told and read. I am also looking at adding 255/85/16 tires, so it could use some other programming too.

 

[Dumpolina]

Anyone? Curious what shop can work this voodoo

 

[Mauser]

Is this one of those dealer only options? Could Techstream be used for this?

 

[NMBruce]

The dealer said they can not adjust that, so it has to be a tuner

 

[Montijo505]

Isn’t there a diode that can be added that increases the voltage? I’ll dig around Tacomaworld and report back.

 

[NMBruce]

Isn’t there a diode that can be added that increases the voltage? I’ll dig around Tacomaworld and report back.

Up until 2020, then Toyota removed that fuse from what I can find. Had a friend do it to his 4Runner, but the fuse wasn’t there in truck

 

[Montijo505]

Up until 2020, then Toyota removed that fuse from what I can find. Had a friend do it to his 4Runner, but the fuse wasn’t there in truck

Ah ok, strange.

 

[NMBruce]

It sucks that I have to find a tuner just to get voltage increased

 

[alia176]

Bruce - per Virgil's question above, Techstream software won't be able to do this, do you know? We both have it.

 

[NMBruce]

Bruce - per Virgil's question above, Techstream software won't be able to do this, do you know? We both have it.

I do not know if it will or not. Something I should/will look into

 

[NMBruce]

I did some searching today, I couldn’t find an answer. The Toyota vehicles I could find information on did not include changing the Alternator output