# 2000 Toyota Avalon - Codes

**URL:** <https://community.cartalk.com/t/2000-toyota-avalon-codes/124850>\
**Category:** Maintenance/Repairs\
**Tags:** toyota\
**Created:** [September 12, 2018, 5:14pm UTC](https://community.cartalk.com/t/2000-toyota-avalon-codes/124850 "2018-09-12T17:14:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![DavidSelover](https://avatars.discourse-cdn.com/v4/letter/d/eada6e/32.png) [@DavidSelover](https://community.cartalk.com/u/DavidSelover)\
**Post date:** [September 12, 2018, 5:14pm UTC](https://community.cartalk.com/t/2000-toyota-avalon-codes/124850/1 "2018-09-12T17:14:11Z")

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code says engine knock sensors 1 and 2 are bad. can both go bad at same time. After clearing code runs good for a short period of time. has anyone had similar problem.  
Thanks

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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:** [September 12, 2018, 5:54pm UTC](https://community.cartalk.com/t/2000-toyota-avalon-codes/124850/2 "2018-09-12T17:54:05Z")

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> [@DavidSelover](#):
>
> can both go bad at same time

Yes, they can but usually don’t.

> [@DavidSelover](#):
>
> has anyone had similar problem.

Why does that matter? You have the problem now. If you will post the actual P codes, we will try and help you diagnose the problem.

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**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [September 12, 2018, 7:38pm UTC](https://community.cartalk.com/t/2000-toyota-avalon-codes/124850/3 "2018-09-12T19:38:10Z")

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> [@DavidSelover](#):
>
> has anyone had similar problem.

Yes, sometimes rodents nest in the engines valley and chew the knock sensor wiring.