Parts fuel tank, how to test capacity before install?

Yes, because they look for Toyota logo on stamp of cat and nothign else to fail an inspection... And if they look back where gas tank is we've no idea what they'll be looking for but when talking about a 2004-09 Prius I'm near certain a gas tank assembly from a different model of Toyota will not pass that inspection. But would love to be proved wrong!

 

They'd have to have an idea that the gas tank is wrong? I'm gonna do my best to make it not so. Or look not so . Etc .

 

Nope, it's not just a pressure sensor. The later system uses a small pump to pull a slight vacuum on the tank "void" space and canister, and the ECM is looking for a pressure change consistent with that air volume.

It also vents the evap thru the purge solenoid and looks for another pressure change. Then checks for fuel leaks from the bladder.

Short form is the ECM is testing the entire SYSTEM, and the amount of jerry rigging needed to fool it would outweigh any gains from using the wrong fuel tank.

Posted via the PriusChat mobile app.

 

So with the pressure sensor inside yeti cup when the pump comes on to alter the pressure because the fuel is missing inside tank . So pump comes on to fill or sux the the space in tank the press in yeti cup changes too . The sensor do its job for such .. I'm not in California so if all this is going to put a light on because of some pressure not correct on a sensor . This will not affect my inspection in North Carolina or anything as old as car us I can burn or remove bulb. There's a push here now to remove emissions from the whole state and it's probably going to pass.

 

What’s a “yeti cup”?

 

You know those stupid things that the young urban pros front coffee out of . They also make expensive coolers the things you add ice to and bears aren't supposed to be able to get into when out in woods . They advertise their on TV ETC

 

You want to clean the tank out with anything but water-based solutions like Stoddard solution is what they use it to dry cleaners you but it 2 gallons to slush around in they're . You're not going to be removing too much stuff . You got to be careful doing this if you get too much stuff loose in the tank large pieces of flakey material won't come out orfices . Remember you have no real access to this tank internally. So if anything rather than upsetting and disturbing what's in the tank that's laying down matted against the metal bottom and edges of the tank

 

This is why the Corolla tank is looking better by the minute luckily I haven't had to change any gas tanks fuel pumps or any of that in any Prius. One fuel pump in a gen3 45 min job 40 pump

 

But now all my cars are at 500K so next is probably a EFI pump . At that point I will want a tank I can open up

 

That's actually a good question. Why are you considering a replacement tank? I have only done this for faulty level sensors or rust damage.

And yes, I would NEVER put any water based substance in the tank (bladder).

Posted via the PriusChat mobile app.