Having problems with your 1999 Toyota Camry ?

Code po446 came up on my 1999 toy camry 2.2 how do I fix.....

Posted / edited by AnonymousUser on : 15-07-2019

Answers :

Check to make sure the canister purge valve on the airfilter hosing has the vacuum lines connected to it. It is really common for these to come of or the fittings to break when checking/replacing the air filter.

to check the valve itself unplug it. Supply power to one pin and ground to the other. You should here it click. You can also try blowing through it. I dont remember exactly but either you will be able to blow it with it powered up and not be able to blow through it with it not powered up or just the opposite.

There is also a VSV on the charcoal canister that goes bad and causes this code. Same thing as above to check it.

If both of those check out than you will need to have the system checked for leaks with a smoker.
P0446 TOYOTA - EVAP System Vent Control Circuit
\015\012Symptoms\015\012- Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors\015\012Possible causes\015\012- Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Vent control valve harness is open or shorted
- Vent control valve circuit poor electrical connection
- Faulty vent control valve
Repair Help & Product Troubleshooting for 1999 Toyota Camry

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