# 2009 Pontiac G6 - Question on Camshaft warning **URL:** \ **Category:** General Discussion\ **Tags:** pontiac\ **Created:** [September 26, 2021, 9:23pm UTC](https://community.cartalk.com/t/2009-pontiac-g6-question-on-camshaft-warning/179599 "2021-09-26T21:23:47Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Wildbrat](https://avatars.discourse-cdn.com/v4/letter/w/6de8d8/32.png) [@Wildbrat](https://community.cartalk.com/u/Wildbrat)\ **Post date:** [September 26, 2021, 9:23pm UTC](https://community.cartalk.com/t/2009-pontiac-g6-question-on-camshaft-warning/179599/1 "2021-09-26T21:23:47Z")
Check engine light on says something about the cam shaft out of balance. What are they talking about ---
**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\ **Post date:** [September 26, 2021, 11:52pm UTC](https://community.cartalk.com/t/2009-pontiac-g6-question-on-camshaft-warning/179599/2 "2021-09-26T23:52:42Z")
It sounds like there’s a discrepancy between the camshaft position sensor and the crankshaft position sensor. [Pontiac G6 P0016: Crank/Cam Position Correlation – Bank 1 Sensor "A" | Drivetrain Resource](https://www.700r4transmissionhq.com/p0016-pontiac-g6/) A faulty sensor can cause it but you need a real mechanic with hands on the vehicle. ---
**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:** [September 28, 2021, 12:05am UTC](https://community.cartalk.com/t/2009-pontiac-g6-question-on-camshaft-warning/179599/3 "2021-09-28T00:05:48Z")
It could also be a problem with the variable valve timing actuator. Assuming your car has that gadget, which it probably does. Especially if the routine maintenance oil and filter changes haven’t followed the manufacturer’s recommendations for the intervals.