Help with P3191 and battery recommendation?

There is no way this charcoal canister will fill with oil unless it is disassembled and oil is poured into it.
Charcoal canisters are designed to store fuel vapors and direct them into the air ducts while the engine is running.

 

Right you are---my confusion. In re: the canister, it's the gas tank that shouldn't be overfilled; see What Happens If You Overfill The Gas Tank?

BUT--the oil overfill can cause problems, too; see What Happens When You Put Too Much Oil in Your Car?

 

P3191 failure to start an internal combustion engine may be due to problems with the fuel supply, poor ignition (spark plugs, coils), incorrectly adjusted fuel-air mixture, leakage problems in the air supply system. This is checked consistently and carefully. If the high-voltage battery is normally charged, there are no errors on it, then it rotates the MG, which, like a starter, rotates the engine. What happens in a regular car when the starter rotates, but the spark plug does not work? The engine is troit and does not start. The same thing happens to you.

 

You made the right choice to clean the throttle valve, it really does look dirty in the photo.

Dirt on the throttle valve can interfere with its movement in different modes and disrupt the required volume of air supply for the formation of the fuel mixture.

To reduce the volume of oil in the throttle valve, you can install an oil catcher on the hose from the PCV valve.

 

That looks great! Nicely done!

BTW, there is a helpful video on the topic of throttle body cleaning, here:

 

Although the cat-stealing craze seems to have slowed down, I'd still worry in LA. What I'd do if I lived there is replace my OEM pipe - manifold to the flange under the rear seat, driver's side with an aftermarket assembly. I did have a couple extra sitting around but threw them out on my last recycler run. I do have some on the cars that I'll switch one day. Anyway...

Just build the same set-up they do in all the others non-CARB states when the cat gets stolen. Thieves cut it between Cat2 and the resonator and the aftermarkets come with the manifold flange. Just need a short pipe to the resonator. And you need the VAV reservoir hack, whether you get an OEM canister (I got a couple somewhere in the garage) or some other canister.

Only the stupidest of the stupid thieves won't recognize that you're running a worthless aftermarket cat and not steal it. But if you run into the stupidest guy, it's still a cheap aftermarket cat. They're well under $100 on Ebay and easy to weld on. And the entire assembly just has 4 bolts and two rubber bands holding it on.

Now, you run that system year round, except when you need to get smog tested. Swap your OEM, pass the test, and take it back off.

Added random bonus, when you get ready to sell the car, keep your OEM cat and sell it yourself. They're like a stash of gold - just watch the commodities markets and sell at a high point.

 

There have been dozens in the CA auctions over the last couple of years. Pretty consistent supply. Some real nice ones. The CA insurers look for any reason to total them out. I bought a nice one it LA - the one I just posted about - and one in Seattle. But since I quit driving the country, it costs too much have them shipped back to Tx and there's no market for the cars or parts here. If anyone wants to mess with G1s California is the place to be.

I finally quit buying last year. I have 14 left, 6 running, 2 for parts, and others to be repaired. But I'm too old, and pretty feeble-minded these days, to finish them off. If I could work on cars more, I'd prioritize getting my ambulance and F450 up to speed, just because I need them going forward and have enough Prii to drive the rest of my life, lol.

I bought almost all of these at scrap value in auctions - scrap being around $1000 between the cat and scrap metal value - so I could just throw all the unfinished ones away and not lose money. Instead, I spend $400/mo on storage yards to let them sit, lol. (that feeble-minded thing, lol). But, I gotta pull the trigger, so I'm back at it. Will be hauling the parts cars away asap. Sold one of good ones this week.

The price of cats went way up during the pandemic, but came back down. I've not sold one of mine in a year or so. IIRC, I got around $650. I'll just hang on to the rest for a while to see if the metal prices follow gold upwards, but haven't so far.

That's about it. There could be some folks, like I was, buying and combining wrecked ones into good cars, but there's plenty of parts at the dismantlers, so not much market for parts - unless it's in CA. I run my Marketplace listing in LA, SF, and some others cities, but the shipping costs are too much, and I don't wanna mess with removing/packaging. You would have more opportunities for local pickup.

 

I have a tiny hope that the market picks up in the next year. It'll be the 25th anniversary of the Prius and I expect Toyota to include these cars in their marketing. I suggested as much to their CMO in an email. I suggested, not sure if here but on some FB Prii pages, that an road rally be organized to celebrate. I think it's amazing that Toyota hybrid technology has basically had two lifetimes - that's crazy rare in technology. Our cars started it by beating up gas-only tech, and now they came back to fight off the EV competition.

I'd love to see a marketing campaign in which Prii of all generations do what they do better than EVs - take long road trips. Have regional drive-in rallies/parties where we all meet and form caravans, then drive to a national rally located somewhere EVs have a hard time going, out in the middle of nowhere, kinda like a Sturgis for Prii with multiple trail rides coming from 5-6 directions to converge for the fun. Our Gen1s could lead the way. We'd be cool again. I sent that idea to the CMO, but no response, lol.

2001s started shipping at the end of this year 25 years ago.

 

Unfortunately, there are no eternal cars.

The first Prius (NHW10) came out in 1997 in Japan and now there are maybe a few dozen of them still plying the roads.