OV Tune and warranty

Like Mat Wilson... Sorry, I had to lol.

TBH, what I've seen using techstream is this - the engine uses DI almost exclusively when under any appreciable load. You'll sometimes see "either" under the injection mode PID - but only under very specific circumstances. I could only invoke this response under very light throttle and under a certain speed/rpm (I have a manual trans). Port is the mode at idle unless the DI cleaning cycle is doing it's thing.
I can't say 100% if DI mode is exclusively maintained under heavy load though... Let's put it this way, I've never seen it switch after hammering the gas, it stays in DI until I lift.

 

Doesn’t it use port mode to clean the valves?

 

That would be a function of any veh with port injection.. but i digress. Another function of having the D4S system is some kind of fancy stratified air/fuel mixture scenario during warmup. I read about it in the "new features" document regarding the 2GR-FKS engine.

The noisy rattling at idle is the DI cleaning cycle. Blows carbon off the tips apparently. BTW, when the engine is doing this, the injection mode PID reads "direct" for the full cycle.

I see you asked the OP in the other thread about OVT again... I want to see his response too!

 

Ok I get it. I didn’t realize the DI injectors also did a self cleaning cycle. I thought it was just a case of the valves needing cleaning.

I understand now. Thanks for the info.

 

Neither, just honest enough to admit when I did something wrong. If I modify a part, I assume the risk of said part failing before it’s time and also the risk that Toyota will not warranty said failure. No loopholes here, and dealers don’t warranty anything, Toyota does and has every right to deny a claim on a modified part. It’s a sad world if only Boy Scouts and “religious people” are the honest ones.

 

I love this comment "wouldn't towing a heavy trailer through the mountains be the acid test" VERY WELL PUT

 

There wasn’t that much R&D, That’s pretty obvious...no truck should shift like that from the factory. They wanted to get this new truck to market and fix as they go because the revenue would be higher than the recalls or TSBs. Toyota sales were up 24% in 2018

OVTune does tuning for different brands of vehicles and Toyota has him helping with certain vehicles like the Camry. Toyota is working with him because he is a true tuner and basically a mad scientist for vehicle tunes. Toyota trusts him because he is the only credible tuner for these trucks as of now and has insight with Toyota not many others have. He even disclosed what’s to come in the future for the Tacoma.

 

I assume you saw his post yesterday about the difference between 70-80% load when the engine is working vs barely working at all?

 

My figure of zillions of dollars vs. your figure of not that much... were both speculating. But the fact that Toyota most likely isn’t a fan of failure...I’d say they put some r&d in it. Somewhere between your figure and my figure, money wise. And my speculation on the OVtune and Toyota mash up... meh. They’re humoring a guy who is tinkering with their shit. Nothing is ever going to come of it.

 

I’ve got over 5,000 miles of towing from here out into the mountains and back with 3500 lbs or more. I’ve been running some version of the tune for 55,xxx miles at this point. I pulled a camper up i70 west to east through Colorado and also towed my brothers car back from Denver area on another trip.

I haven’t had any issues and the truck still runs way better than stock. I was just back on 04b13 for a couple weeks to compare. Now back on 1.05.

 

Question. You run with a tune and develop a powertrain issue. You remove the tune back to factory and take the Tacoma to a Toyota dealership. Would you mention to Toyota / Dealership that you were running with a tune when the problem developed or would you present your vehicle as stock?

By removing the tune and if you don't mention the tune are you not deceiving the dealership?

 

Yes you are. Everyone who tunes their Taco knows it comes with risks (warranty wise).. if they don't, well they're either naive or just not being honest.
So here's a thought - What if the oil pump just gave out on my truck on the highway, shit went haywire with CEL, warnings, and most likely limp mode. I don't know that it was the oil pump, just that something really bad happened. Do I tell the dealer right off the bat about the tune, when I don't know what happened?
The two may not even be related, just a defect from the factory. If I blurt it out, the dealer may very well say fuck you right away. You could say they have every right to, but isn't it also incumbent upon them to actually be honest and not just jump to conclusions? We know what would happen.

Again, not arguing that it's dishonest to present the truck as stock when it's not.

 

My warranty is long gone but if I had to goto the dealer for something, I’d just tell them shits broke. No more, no less. No reason to give them something to point fingers at.

 

As a designer and engineer for products who does R&D on a daily basis... little testing is actually done on these trucks for the end user (the reward the user gets from using the product in varying situations). Most of it likely goes to safety and emissions because of govt. regulation/laws, not actually making things the best for the user. Just sayin

A simple example why didn’t they include an anytime back camera button for towing. There is a perfect spot for it next to the Hid unit...Makes total sense, but the testing they did was rushed and the end user wasn’t the focus...on the list, but towards the bottom

 

A lot of people design and engineer. Some engineers/companies choose to spend less, and some, more, on r&d. If you think you’re going to have me believe that Toyota (THE Toyota) didn’t dump r&d into this product, you’re barking up the wrong tree lol. In fact, it’s my opinion that when people SAY that on these forums specifically, they’re just talking out of their ass.

 

Not saying they didn’t just saying it was rushed. Cool your jets man I wasn’t challenging you just speaking from experience and the information I received from a friend who works for Toyota, but I digress

 

They had to hurry cuz of all the Tacoma killers coming to market!

 

It’s just the words on the screen that seem confrontational. My jets are napping. I expect you to challenge anything you don’t agree with. I am emphasizing that I personally don’t believe that Toyota didn’t do their research especially when it comes to profits. It’s not like they want their truck to fail. I could be wrong, because I’m speculating, it’s entirely within the realm of possibility that they spent 30 bucks and and hour and a half on r&d. It’s just that there’s no way I believe they put out a product that didn’t perform how they intended it to perform. Underpowered? Sure. But I think that was deliberate.

Also I don’t fault anyone for wanting more power. It’s just not how this truck was intended, and if altering something to get more power blows up in someone’s face, it’s kinda on them.

 

I concur with you that what they put out was intended, but the user wasn’t the main focus for the intent