CEL light continues to come on when gas tank drops to under a half tank and goes off when it is above a half tank. Replaced a bad gas cap with a generic cap - not one from the dealer. An error code of P0441 pops up with recommended fixes of a charcoal cannister or a fuel pump module seal. All valves, hoses, seals, vaccum lines are fine. The only real fix is a charcoal filter which is not really needed or required for me to have in Georgia. What is the general price of the canister and could it be found in a auto salvage place? My understanding is that it has to be a toyota part. Thanks.
A relatively rare trouble code for Toyotas.. The most common cause here is a vacuum leak in the system that prevents fuel vapor from reaching the charcoal canister, where it is then sent to the engine via the opening of the PCV valve. To determine a leak test, you would need to visit a mechanic. But something you could do yourself is verify the fuel cap and filler neck are both clean and fit tightly together. Make sure there is no dirt, and the O-ring is not damaged/dirty/missing as this could allow fuel vapor to leak, thus triggering the sensor.
My personal guess here though would be a bad valve. In my line of work, I deal with faulty valves all the time. A valve consists of various moving parts and the ones that are solenoid operated, such as yours, can develop electrical faults over time. You can check the solenoid portion of the valve yourself using a multimeter set to Ohms and placing the two leads across the connector, one on each prong. Remove the power connector from the valve first of course. A typical solenoid will give a value something like 3 Ohms. (A solenoid is a coil of wire wrapped around a core which is usually attached to the device the coil is operating. When a current is applied, the coil forms an electromagnet that either pulls or pushes the core to cause valve operation. Your fuel injectors work in this way).
Should you see a reading less than 3 ohms, approaching zero, you have a short. If you see a very high reading or an "0L" or no reading at all, or "infinite", you have an open circuit. In both cases, the solenoid has failed and needs to be replaced.
Your canister could also be clogged, and despite Georgia's laws regarding the canister, it is a part of the purge system that needs to be present, and in good condition to allow proper operation.
I have included a link to a helpful information page which may further assist you.
Hope this helps!
P0441 Code Toyota
SOURCE: gas leaken new tank
Don't laugh but I've used baby powder to find leaks on gas tanks. Spread it on the tank with a cloth or powder pad drive around a while then take a peek. If you find that the tank is leaking bring it back to the place who installed it . This is no joke.
SOURCE: Had OBD2 codes P0441 & P0446 on my 1999 Toyota
According to my 2002 Toyota Tundra manual (and it may be different for your car) P0125 is as follows:
Insufficient Coolant Temperature
for Closed Loop Fuel Control
This would seem unrelated to your original problem.
SOURCE: 2006 Avalon Limited with 40,500
Yea VSC lite will come on when ever a check engine lite is On, the codes you mentioned are certainly a EVAP codes, make sure your gas cap is a factory and inspect seal surface and contac surface on filler neck for rust clean if any,also check all hoses going into air box reconect if necesary, (have your car been in any accident) if have access to a scan tool resest lite if lite comes back no other option take it to a dealer, check for warranty coverage on this systems.
good luck
SOURCE: check engine light . shows
Your best bet is a repair shop with an EVAP
Smoke Machine,to quickly check for leaks.
You won't see or feel anything without smoke
in the system.
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