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post #1 of 16 (permalink) Old 04-27-2018, 08:41 PM Thread Starter
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Code P0446

Hello fellow Rav4 owners. I'm not sure how many people still have a 2000 Rav4 2wd, but I just got the P0446 EVAP MISSION CONTROL SYSTEM VENT CIRCUIT MALF error. From reading different posting here, it could be the VSV which I thought is the Vacuum Switching Valve. The part number is 25860-74210 which is located next to the air filter box. Although, I'm reading from other first gen owners that the VSV is located behind the engine on the firewall side.

Any 2000 Rav4 2WD owners out there that knows if this is the correct part? Anyone been able to resolve this error?

Thank you in advance for your help.
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post #2 of 16 (permalink) Old 04-28-2018, 02:55 AM
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post #3 of 16 (permalink) Old 04-28-2018, 04:16 AM
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I fixed my 2000 RAV4 with this code. Fix involved replacing the vsv on or near the Evap canister to my recollection. You are on the right track, I bench tested my vsv and it was not working. I replaced with another used one from my parts car.
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post #4 of 16 (permalink) Old 04-28-2018, 06:26 AM
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I guess this part IS expensive new from Toyota.
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post #5 of 16 (permalink) Old 04-30-2018, 12:28 PM
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Just a side note: My Rav4 has 5 VS Valves connected to 3 different systems.
That is why you hear of the valves being in different locations.

99 Rav4 in Quicksilver
AWD & LSD with Moon Roof. Power Everything, except the manual Leather Seats and Transmission.
Selectable DRL, Inactive ABS, In-dash CB with Wilson roof-mount antenna, Clearance 10'8".
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post #6 of 16 (permalink) Old 04-30-2018, 01:02 PM
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Quote:
Originally Posted by makulit View Post
Hello fellow Rav4 owners. I'm not sure how many people still have a 2000 Rav4 2wd, but I just got the P0446 EVAP MISSION CONTROL SYSTEM VENT CIRCUIT MALF error. From reading different posting here, it could be the VSV which I thought is the Vacuum Switching Valve. The part number is 25860-74210 which is located next to the air filter box. Although, I'm reading from other first gen owners that the VSV is located behind the engine on the firewall side.

Any 2000 Rav4 2WD owners out there that knows if this is the correct part? Anyone been able to resolve this error?

Thank you in advance for your help.
We had the same code came up last year on the wifes old car, Saturn Vue. That part was on top of the motor in about the same location as you noted.

Easy job to do yourself should take about 10-20 minutes.

We had autozone put their diag tool on the car and it showed which part to get. If you did the same, sure thats the correct part.

Current Vehicles:
2015 - Black XLE
2011 - Tundra CM Silver Sky Metallic
2003 - Suzuki Volusia
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post #7 of 16 (permalink) Old 02-28-2019, 12:00 AM
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@makulit
How did you resolve this issue? Thank you for giving us closure on how you fared.


@mensajero
Today I ran OBDII as routine (no CEL), and got "PENDING CODE P0446."

1/ What is "PENDING CODE" w/ no Check Engine Light?
2/ Where would you start w/ this P0446? No gasoline smell near gas tank.

Thanks, as always, as I attempt to nip this in the bud.

'98 RAV4 5-Speed 2WD 4-Dr. hardtop 2.0-L. gas I-4 engine. Venetian Red Pearl. Tail Light Guards (Manik). Michelin LTX M/S2 tires & spare. LED headlamps. Roof luggage rack. 5th-door saddle bags. Custom leather steering wheel cover. Sheepskin seat covers. Billiard ball #13 shift knob. Alloy wheels. Push Bar grille guard, LED fog lamps. Suede door panel inserts. Faux-suede center console cover. Driver/passenger grab-assist handles.
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post #8 of 16 (permalink) Old 02-28-2019, 01:30 AM
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@makulit
How did you resolve this issue? Thank you for giving us closure on how you fared.


@mensajero
Today I ran OBDII as routine (no CEL), and got "PENDING CODE P0446."

1/ What is "PENDING CODE" w/ no Check Engine Light?
2/ Where would you start w/ this P0446? No gasoline smell near gas tank.

Thanks, as always, as I attempt to nip this in the bud.

I guess, if you have no gas smell, I would start at the gas tank cap. I think our Evaporative Vent Circuit is located just under the brake fluid cup. Check the hoses and ends that are placed in position and the ends are not leaking. Buying a new one is expensive. A salvage yard you can get one for about 15 to 20 dollars.HIH
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post #9 of 16 (permalink) Old 02-28-2019, 02:06 AM
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@
Thanks for suggesting this. It was my first step. Just ordered Amazon #77310-48020 Gas Tank Filler Cap.

Meanwhile, will inspect current filler cap-- wondering if it's OEM factory (i.e. 22-yrs.old) or a replacement that's not OEM from previous owner.

Will keep you posted.

'98 RAV4 5-Speed 2WD 4-Dr. hardtop 2.0-L. gas I-4 engine. Venetian Red Pearl. Tail Light Guards (Manik). Michelin LTX M/S2 tires & spare. LED headlamps. Roof luggage rack. 5th-door saddle bags. Custom leather steering wheel cover. Sheepskin seat covers. Billiard ball #13 shift knob. Alloy wheels. Push Bar grille guard, LED fog lamps. Suede door panel inserts. Faux-suede center console cover. Driver/passenger grab-assist handles.
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post #10 of 16 (permalink) Old 02-28-2019, 01:07 PM
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Originally Posted by Techsus View Post
@
Thanks for suggesting this. It was my first step. Just ordered Amazon #77310-48020 Gas Tank Filler Cap.

Meanwhile, will inspect current filler cap-- wondering if it's OEM factory (i.e. 22-yrs.old) or a replacement that's not OEM from previous owner.

Will keep you posted.

Remember to check all the hoses. eodgator did some cool color hoses for those parts, you should check them out.
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