# 2013 Mazda CX-5 - Code PO13A

**URL:** <https://community.cartalk.com/t/2013-mazda-cx-5-code-po13a/156777>\
**Category:** Maintenance/Repairs\
**Tags:** mazda\
**Created:** [January 18, 2020, 5:03pm UTC](https://community.cartalk.com/t/2013-mazda-cx-5-code-po13a/156777 "2020-01-18T17:03:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![HowardAChurchwell](https://avatars.discourse-cdn.com/v4/letter/h/49beb7/32.png) [@HowardAChurchwell](https://community.cartalk.com/u/HowardAChurchwell)\
**Post date:** [January 18, 2020, 5:03pm UTC](https://community.cartalk.com/t/2013-mazda-cx-5-code-po13a/156777/1 "2020-01-18T17:03:37Z")

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My check engine light came on yesterday I had it checked this morning and this was the code. PO13A now the light has gone out. Do I still need service?

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [January 18, 2020, 6:16pm UTC](https://community.cartalk.com/t/2013-mazda-cx-5-code-po13a/156777/2 "2020-01-18T18:16:40Z")

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I think I would drive it if the CEL stays off. But if it comes on again would take it in, Diagnostic May be up to $150 but better than throwing parts at it. Driving with theCEL on can result in damage to other engine components.

## P013A Possible Causes

- Faulty Heated Oxygen Bank 1 Sensor 2
- Heated Oxygen Bank 1 Sensor 2 harness is open or shorted
- Heated Oxygen Bank 1 Sensor 2 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks