2023 4 Runner Limited Fuel injection questions.

Hi: New to the form. Trying to find out the type of fuel injection on the new 2024 V6 engine. I believe there called 1GR-FE series engine. V6 4 liter engine. We just purchased a 2024 4 Runner TRD Off Road version. I found some info the says this engine is using Sequential Port Injection which I understand is the same as Multi port injection. Tying to confirm info. Thanks for any help.
This is from Toyota website below.

The Toyota GR V-6 engines are made mostly of aluminum with dual overhead camshaft (DOHC) cylinder heads, also made of aluminum. Three types of fuel injection appear on variants of the GR family, including multi-port injection, D4 direction injection, and a hybrid of the two called D4-S. These variations are usually model and market-specific.

 

I see a $ sign in the title. lol Suppose to be 4 Runner

 

4runners use old-school port injection.

 

You are correct the 2024 4Runner has the 1GR-FE engine, which is multi-port injection only.

 

Thank you. Is there any literature any where you can source this? It's starting to look like that is what is used as the engine is the same since around 2012 or even earlier with a few updates to the VVt. I asked dealer staff yesterday and no one knew what I was talking about. I want to stay away from Direct injection as I understand there is issues with intake valves. From what I been reading the 1.5L Turbo is Direct Injection. (DI)

 

It’s basically been the same engine since 05. It’s port injection only, not direct. You can remove the engine cover and see the injectors under the intake.

 

it’s the same engine they’ve been using for more than a decade lmao

 

Wikipedia has some good info.

https://en.m.wikipedia.org/wiki/Toyota_GR_engine

The 1GR-FE engine design is old, 2002 is when it first came out I think. You don't have anything to worry about with the intake valves, it is for sure port injected. Supposedly Toyota will have the redesigned 4Runner available in 2025 (haven't been following that much so might have been pushed back yet again) with the turbocharged 4 cylinder that is direct injection, but I don't know what kind of protections it has to prevent coking. But you're good if you stick with a 2024 model year.

I get your concern, I had a VW GTI that had direct injection, it was an early 2007 model. It had coking on the intake valves that caused misfires before I sold it with around 50k miles. One thing I appreciated about Toyota when they came out with the new engine in the 2016-2023 Tacoma's was that the engine had direct injection, but also included port injectors for the purpose of cleaning the intake valves. It would cycle the port injectors at regular intervals.

 

Port injection good, direct injection bad and will ruin your engine (carbon deposits)

 

AND... it's free of the carbon buildup and garbage that direct injection motors leave inside the heads - and all the headaches that go with it. The ancient 4.0L in your new Runner may be old technology, but it'll go 300K miles (at least) IF you take care of it. All of the gas money saved by all of that nuevo "efficiency" you might get from a direct injection motor is gone in a flash the first time you have to change out the injectors (or heads), not to mention the downtime while your vehicle sits in the shop. My wife had a 2017 Honda Pilot that had the injectors (and accompanying hardware) changed twice under warranty - each time would've have dinged us for a grand at least. When the warranty was gone that POS was gone too. Replaced it with her 22' Limited 4R - it's old technology engine has done nothing but purr like a kitten for 2 years.

 

My wife has a '23 Acadia with the 3.6l V6. My concern with that engine is it has displacement on demand and auto start/stop. I am hoping we can make it last a long time but those two things do concern me. I'm very happy with the 4.0l V6 in the 4Runner. It brings a smile to my face whenever I first start it up and I hear the clutch fan kick on.

 

Ditto!

 

Remove the valve cover and look.

Carbon build up on DI engines isn't that big of a deal. There are tools to quickly clean the carbon off of the intake valves

 

99 percent of the people don’t have the knowledge and ability to do that

 

kind of funny, back in the old days engines needed a “tune up” every 15-30k miles. Then it turned to going to 100k before anything was due on the engine. Now it’s back to the old days with DI lol.

I appreciate the D4S direct/port injection combo on my 2018 Highlander. I saw a Car Care Nut video that showed one with a lot of miles with clean valves, so it definitely works. I don’t appreciate that the Highlander is surprisingly high maintainance with spark plugs and required electronic brake booster replacements at 120k miles, but at least I dont have to worry about valves getting carboned up.

 

You can edit the title.

 

Meanwhile, my supposedly prone-to-sludge 5S-FE has never been opened at 200k miles, just oil every 5k, and timing belt + water pump at 110k.

Note to self: buy another camry with 5S-FE.

 

First, Thank you to all replies. Not sure how to edit title.
Update: So we get up yesterday morning and we both say that we don't think the off road unit will work. For me I really like it, My wife not so much. I realize she is gonna want the limited as it has real time 4 wheel drive. So we find a 2023 Limited that someone ordered and couldn't get financing. So of we go and sure enough the wife loves it. Couple hour later were headed home with the unit. She's very happy with it.
Anyway, that's that. I ask the service manager about the fuel injection and he says there is 12 injectors. He says it's called D-4S. He says it's direct injection and port injection. I also have another dealer tech say it D.I. and P.I. The search continues. lol
https://www.tomorrowstechnician.com/toyota-d-4s-port-fuel-or-direct-fuel-injection-why-not-both/

 

Here is another write up, https://www.motorreviewer.com/engine.php?engine_id=128 Says: The engine uses a sequential fuel injection system with twelve-hole fuel nozzles for each cylinder.

Another good read. https://toyota-club.net/files/faq/13-11-10_faq_gr-engine_eng.htm

 

i’m not against the powertrain. i just think that the original question being asked is dumb.

 

You have to remember that dealers don't know anything about the product they sell. Even the service manager is just off of the street.

 

Isn't that the truth.. lol

 

It’s the same engine they’ve been using for more than a decade lmao
I’m not against the powertrain. i just think that the original question being asked is dumb.

So you should elaborate on your statements. Thank you.

 

Just buy the car you want and live with it. The question has already been answered by @ecoterragaia and
whippersnapper02 and others. Not to be dismissive, but not sure the point of this thread? 5th gens last forever if you take care of them. Quit worrying about it and enjoy a 5th gen. Hope you find the 4R you want. But lovingly this is a silly question.

 

there is NOTHING to elaborate on. it's LITERALLY the same engine they have been using i kid you not.

 

+1

 

The 4Runner and Tacoma shared the same V6 engine until 2015. In 2016 the Tacoma came with a newly designed V6 that has the DI and PI hybrid system, but the 4Runner kept the old V6. I assume the folks you talked to are thinking that the 4Runner has the current Tacoma V6, when in reality it's the old version with just PI.

 

This guy knows.

You need the port injected FI spraying/coating your valves and ports to keep them clean or else this happens.

 

My GTI is nearing 100k miles, debating whether I should do the cleaning or take it to someone and also get a new water pump at the same time.

 

I've owned a GTI and a tiguan. Cleaned the intake ports on the head on both. It's a real PITA to be honest and you end up scratching the shit out of the port chamber walls with a screwdriver and w/e tools will work because you realize how much effort its going to take if you half ass it.

I tried sea foam, gas, mineral spirits. Nothing really broke it up besides chiseling away at it. VW is the reason I swore off turbos indefinitely. Just not my cup of tea. I like the power but the maintenance is 3 fold what NA motors are.

As far the water pump, that's an easy one that can be done solo, might as well do the timing belt and tensioner while your there.