Injector question!

2012 v6 4.0 Liter Completely rebuilt engine with about 7000 miles. The original injectors were put on the new engine . Should I have the old ones
rebuilt or just break down and replace them with new. I am leaning to replacing them but need some opinions on which ones are good!!

 

If you are going to the parts cannon. OEM Toyota Injectors. Don't get cheap now.

 

Is there something wrong with them?

Injectors don't fail very often so I wouldn't worry about them unless you are having an issue.

 

X2. Run em till you have a problem.

 

I had an old car. The injectors were worn. I sent them out to an injector shop to be rebuilt.

Some people barely even replace the integrated (worn) basket filter.
An injector shop, which at the time cost like $60-100, was:
-ultrasonic clean
-flow match
-flow test
-rebuild/replace wear parts like o-rings, pintle cap if applicable, basket filter, etc
Pretty good. That assumes they have stock for flow matching if needed.

The only issue with that is downtime. It was a car I was not using at the time so I did have the week or two it took to mail, work performed, return in mail.
Right now driving my truck daily I don't have that time, unless perhaps I find a viable candidate set like buy a used set for cheaper than new.
Which I probably wouldn't want to buy new because it's usually expensive, and a lot of money for something that's still basically stock performance.

Unlike modded/upgraded cars, which usually get upgraded injectors with more flow as part of upgrading it, in which case it does become a spare part before install, and does have that time for servicing to get ready before actually installing, so the car is still driveable

as the Tacoma is a daily, and not a garage queen 10 miles showroom once a month Sunday car

also depends on how common it is.
B6 A4, many enthusiasts. Many people changing to TT 386CC oem injectors. Probably easier to get that serviced in terms of parts supply vs a Tacoma nobody dealing with injectors.

IDK how sensitive the ECM is programmed to AFR. Or just putting a gauge.
It should be noticeable if there is an issue, of being rich or lean. If an injector is stuck open, or not spraying enough.
But I guess that is the idea behind service, is it's not always about stuck open. But more, flow pattern is not what it used to be due to buildup. Though there are also additive products that claim to help that.
It's just that additives aren't a guarantee. They're a guess. It's not measurable. Flow match is a visible measurement, as is testing pattern.

 

No issues with it.

The only thing I change with fresh engines are seals and spark plugs. I reuse everything else if there's no problems.