# 2004 Kia Sorento P0171

**URL:** <https://community.cartalk.com/t/2004-kia-sorento-p0171/137747>\
**Category:** Maintenance/Repairs\
**Tags:** kia, sorento\
**Created:** [April 1, 2019, 7:44pm UTC](https://community.cartalk.com/t/2004-kia-sorento-p0171/137747 "2019-04-01T19:44:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![saveriorella](https://avatars.discourse-cdn.com/v4/letter/s/f17d59/32.png) [@saveriorella](https://community.cartalk.com/u/saveriorella)\
**Post date:** [April 1, 2019, 7:44pm UTC](https://community.cartalk.com/t/2004-kia-sorento-p0171/137747/1 "2019-04-01T19:44:37Z")

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i have a 2004 kia sorrento which promoted a code po171 awiuld to know what rong

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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:** [April 1, 2019, 7:48pm UTC](https://community.cartalk.com/t/2004-kia-sorento-p0171/137747/2 "2019-04-01T19:48:03Z")

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From [obd-codes.com](http://obd-codes.com)  
Causes A code P0171 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty Note: The use of “oiled” air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. There could be a vacuum leak downstream of the MAF sensor Possible cracked vacuum or PCV line/connection Faulty or stuck open PCV valve Failed or faulty oxygen sensor (bank 1, sensor 1) Sticking/plugged or failed fuel injector Low fuel pressure (possible plugged/dirty fuel filter!) Exhaust leak between engine and first oxygen sensor

Read more at: [https://www.obd-codes.com/p0171](https://www.obd-codes.com/p0171)  
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