Tacoma ECU Tuning for 4.0L

No worries I can catch ya up to speed, what do ya want to know?

Here’s some commom Q’s I get a lot in my PMs:

Yes I was on the stock TRD tune

My mpgs have not changed much and I think when I go back to summer gas they will improve

 

I never understood people wanting a supercharger yet worry about mpg

 

That's what turbos are for

 

You have a build thread? Curious what your mods are.

Mine gets a pretty consistent 13.5 MPG. Is that good?

 

I thibk once people put on their heavy offroad tires, bumpers, sliders, bed racks etc they want to get anything they can. I agree for to get the best mpg you are basically driving the truck with out the supercharger..

 

No build thread but I should probably start one. At the time of the dyno this is what I had:

Bypass jet removed
AFE air intake (dry)
Urd 2.85 stealth pulley
Jba shortie headers with stock cats welded on
Banks 3” catback
Stock ypipe
Deatschwerks 255 lph fuel filter

I think that’s everything.

 

What?! Nobody supercharged gives a shit about fuel economy. Its all about the power!

That said you should do like an AEM meth kit, larger injctors, and the 2.7 pulley and get tuned so I can get a copy of your tune from OVTune and then move on with my life lol.

 

I’m probably going to put together my own meth kit, just gonna inject it at the throttle body instead of tapping into the supercharger.

I might do 2.55 or 2.7 pulley haven’t decided which one yet, and will probably get my stock injectors reflowed instead of buying one that requires an adapter. Time will tell

 

Well get on that cause i want some of the good stuff. And im tired of figuring it out on my own.

If i could just do the 2.7 and a tune and get, i dunno 35hp id call it a day and leave the truck as is. Its been pretty reliable and ive been boosed for about 92,000 miles. Id like another 90k before major problems start showing.

 

Who am i kidding i want 50hp, but i dont want to sound greedy and unreasonable.

 

Purchased 11-7. Still some what patiently waiting for calibration ID to be added (3YWG3500). Hopefully soon!!

 

Mine is running fine with the UCON but for the sake of simplicity it would be cool to just run the stock ECU only.

Would need it to run 640cc injectors, disable some of the DTCs relating to catalytic converters and losing the secondary air injection would be a nice bonus.

Curious how much dyno time would be needed to make it run correctly.

 

He can tune for bigger injectors, I’m not sure if 640 is the trd injector size I was just assuming

 

I think trd is 525cc? Can’t remember.

With the TRD injectors my data logs at WOT were like 85% duty cycle for the main 6 and 40% for the 7th.

I think the 640cc would be enough.

 

I’m really thinking this is the answer. What is the deal with all the different ecu’s? I’m still confused by this.

 

455 I believe is closer.

 

Every year toyota does updates and the calibration id changes. Sometimes multiple time per year. Trd tune are also considered another calibration.

 

The TRD/Magnuson sc injectors are 455cc.

 

When are more ECU versions going to be added? Even though we've been told its a matter of time, I haven't seen the green light to update the handheld for the other versions. Is this still waiting on the 3rd party Italian company to commit the changes in the repository? Or has another hiccup occurred?

I'm still waiting on YWG2900 before I can do a thing.

 

no hiccups, waiting on the next update
ecus going in are
89663- YWG35
89663-YWG38
89663-YWG41
89663-YWG44


YWG2600 is in already,
YWG2900 is in the next batch