# Check engine light in my car

**URL:** <https://community.cartalk.com/t/check-engine-light-in-my-car/179793>\
**Category:** Maintenance/Repairs\
**Tags:** sienna, toyota\
**Created:** [October 6, 2021, 3:15am UTC](https://community.cartalk.com/t/check-engine-light-in-my-car/179793 "2021-10-06T03:15:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![crize84](https://avatars.discourse-cdn.com/v4/letter/c/7993a0/32.png) [@crize84](https://community.cartalk.com/u/crize84)\
**Post date:** [October 6, 2021, 3:15am UTC](https://community.cartalk.com/t/check-engine-light-in-my-car/179793/1 "2021-10-06T03:15:24Z")

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I received an emissions warning and a P0012 code from my Verizon HUM that’s in my 2015 Toyota Sienna. What am I looking at here. The code says: A camshaft position - timing over-retarded ( bank 1)

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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:** [October 6, 2021, 12:51pm UTC](https://community.cartalk.com/t/check-engine-light-in-my-car/179793/2 "2021-10-06T12:51:13Z")

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You are looking at replacing the variable valve timing solenoid, or actuator, at best. A bit worse is you have oil sludge buildup in the system.

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [October 9, 2021, 12:30am UTC](https://community.cartalk.com/t/check-engine-light-in-my-car/179793/3 "2021-10-09T00:30:35Z")

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One you get this corrected, suggest to change the engine oil/filter more frequently. That part is used in the variable valve timing function, and is very sensitive to the engine oil.