# 2014 Toyota RAV4 - Codes

**URL:** <https://community.cartalk.com/t/2014-toyota-rav4-codes/139605>\
**Category:** Maintenance/Repairs\
**Tags:** toyota\
**Created:** [May 1, 2019, 1:16pm UTC](https://community.cartalk.com/t/2014-toyota-rav4-codes/139605 "2019-05-01T13:16:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Patricia15](https://avatars.discourse-cdn.com/v4/letter/p/ebca7d/32.png) [@Patricia15](https://community.cartalk.com/u/Patricia15)\
**Post date:** [May 1, 2019, 1:16pm UTC](https://community.cartalk.com/t/2014-toyota-rav4-codes/139605/1 "2019-05-01T13:16:17Z")

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Hello,  
I have a 2014 Toyota Rav 4 with 40k miles on it. Recently, the check engine light appeared while driving. The error codes I received are PO441 Evap Emmission System Incoorect Purge Flow detected and PO455 Evaporator Emmission System Leak detected (gross leak/no flow). Any thoughts on what to look forI and how to fix? I did check to make sure the gas cap was closed properly.🙂  
Thank you for your time.

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [May 1, 2019, 1:20pm UTC](https://community.cartalk.com/t/2014-toyota-rav4-codes/139605/2 "2019-05-01T13:20:40Z")

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Possible causes are;

- Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Incorrect fuel tank vacuum relief valve

You might try replacing the gas cap as a next step.

Given that this an emissions issue and those are covered for 8 years and 80K miles, this may be covered under your warranty. A call to the dealer is in order.

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<div class="post-metadata">

**Author:** ![Patricia15](https://avatars.discourse-cdn.com/v4/letter/p/ebca7d/32.png) [@Patricia15](https://community.cartalk.com/u/Patricia15)\
**Post date:** [May 1, 2019, 1:49pm UTC](https://community.cartalk.com/t/2014-toyota-rav4-codes/139605/3 "2019-05-01T13:49:47Z")

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Thank you so much Mustangman!  
The gas cap seems to be in fine working order and tightened, but I’ll keep that idea as a possibility.

I somehow suspect it’s debris in the Evaporative Emission Control System.