Another successful gen2 Prius injector replacement. Toyota tried to tell them the car was old and the low mileage was all she would give. Sent their injectors to UREMCO for a rebuild and getting over 50 mpg. No more misfires. I just had to give credit to UREMCO. You send them your old injectors and they remanufacture them better than new for 20 bucks an injector. Great company.
Usually a recommendation is best done with a link people can click on... Because you say you owned a 2010 I searched for those injectors but they don't sell them. And because you're posting in a Gen2 forum I found this link for Gen2 injectors they sell, which are compatible with lots of Scion vehicles: https://www.uremcoinc.com/shop/fuel-injector/uremco-part-no-21020/ And I didn't see anything about injector rebuild? Do you have a link to that? Or your order that shows it only cost $20 to send them to them for a rebuild?
Some years ago there was a PriusChat injector exchange thing going on where we sent them to Cruzin Performance in Michigan, same deal, about the same price. (I think it was $19 per injector then.) Rich would send back the restored injectors plus printed test results both before and after the restoration, so you would know whether it was likely to have been your problem or not. To address the turnaround time issue, it all got started when one member bought a new set of injectors. So then he sent his old set to Rich, who restored them and sent them to me. I would send those to the next person who wanted them, who would do the swap and send the old ones to Rich, who would restore them and send them to me. There's also an outfit called RC Fuel Injection, in Torrance, CA, that offers the same service. Getting the before/after test results was a nice bonus, because in one case it was clear the injectors really were the problem; the car ran better after the replacement, and in the 'before' test you could see exactly why it didn't before. In other cases, the 'before' test results were nearly like new, enough to tell you "ok, this was a worthwhile exercise 'cause we learned from it, and what we learned was the problem is still somewhere else."
At high mileage like $200,000 what have you If your mileage is down and you really think you're injectors might be a problem I just buy a new set I'm at $300,000 mi and my mileage is down about 3 mi to the gallon do I believe changing my injectors is going to put my mileage over factory rating and near 50 probably not that's why they haven't been changed there's no stuttering no funny business the car drives well has decent pickup and acceleration as you can have in the Prius of this genre and that's that if we reach that point and maybe we'll give it a whirl I've never generally had injectors rebuilt I just got new ones.
Not everybody might bother to have injectors restored, but there are a couple reasons I like it. One is the money: you end up spending about the same as a cheap set of knockoff injectors, but keeping a set of Toyota-quality ones restored for another 200,000 miles or so. The other is the test results. You actually end up with a second objective data point for the question in your mind about how much these injectors contributed to whatever your concern with the car was, so you can weigh that with your impressions about whether the car drives differently after replacement, mileage changed, or whatever. If you buy new and blindly swap, you only have those impressions to go on for whether you accomplished much. For the record, experience during the old injector exchange was 2 out of 3 times, the old injectors tested with flying colors before restoration. These Toyota injectors tend to hold up really well for a long time. Exceptions might apply if someone's been buying lousy fuel, running with some other engine issue, or so on.
Any chance someone experimented with DIY cleaning results vs. shipping them off for cleaning? I mean isn't an injector just a spray nozzle? Seems like it wouldn't require any special equipment to clean, just to test... And if ya'll want to see what these testing machines are like: Also some slow motion filming of injectors:
Both Cruzin Performance and RC Fuel Injection give some details on how they do the cleaning. Both seem to be using a specific cleaning fluid in an ultrasonic bath while using injector drivers to pulse them. This happens after removing the original screens, seals, and O rings, and then new ones are installed at the end. Injector Cleaning Steps https://www.rcfuelinjection.com/Store/c/fuel-injector-cleaning The shops that do this stuff routinely have sources for those replacement screens and seals, which I think would be pretty hard for me to find if I just wanted 4 for my own back yard. The member's experience here, when the injectors really were performing poorly, is described in this post. It pretty well established that the other kind of DIY cleaning—in-tank additives—had not been effective, where the off-car ultrasonic process completely restored them. It links to an article in Import Tuner that had reached about the same conclusion. Maybe the additives have some value in keeping clean injectors clean, but they hadn't accomplished much with injectors that really needed cleaning. I had an employer that would pay the same per mile as the federal business-use deduction rate, if I used my own vehicle on a business trip. That's not quite a dollar yet, but it's currently 65.5¢. And yes, that is fun, when you calculate your own cost per mile to be substantially lower. You can sock the difference right away into your maintenance fund.
When we were talking about this yesterday I messaged UREMCO about their price for injectors for Gen2 and they sent this email link for a set of 4 for $44: https://www.ebay.com/itm/403406571716 Pretty good deal. Anyone want to study the pics and say if they are a higher quality build than OEM or not? Definitely a prettier color...
