# CAM Position Sensor

**URL:** <https://community.cartalk.com/t/cam-position-sensor/39001>\
**Category:** Maintenance/Repairs\
**Tags:** audi, a4, engines\
**Created:** [November 3, 2009, 6:44pm UTC](https://community.cartalk.com/t/cam-position-sensor/39001 "2009-11-03T18:44:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Drayne](https://avatars.discourse-cdn.com/v4/letter/d/91b2a8/32.png) [@Drayne](https://community.cartalk.com/u/Drayne)\
**Post date:** [November 3, 2009, 6:44pm UTC](https://community.cartalk.com/t/cam-position-sensor/39001/1 "2009-11-03T18:44:20Z")

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I have a 2002 Audi A4 and the MIL comes on intermittently (may be off for a week, then come on for a day, then go off for a day and come on for a week, etc). My OBDII reader shows code P0348, which a quick internet search reveals as “CAM Position Sensor A Ckt High Input Bank 2”. The car runs fine, mileage is not suffering, no noticeable effects other than a slight shudder in the engine every few weeks that causes the light to come on again. Is this a serious problem? Is it expensive to fix? Do I need to fix it? I appreciate any help.

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**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\
**Post date:** [November 3, 2009, 9:54pm UTC](https://community.cartalk.com/t/cam-position-sensor/39001/2 "2009-11-03T21:54:40Z")

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Check the wiring and connector to the sensor for corrosion or loose contacts.