Awasome 2014 Chevy Cruze Check Engine Light On And Low Idle References. Common symptoms of a faulty o2 sensor include poor fuel economy, rough idling, and a decrease in engine performance. Web when it fails a vacuum leak results and is generally described as a whistle sound occuring at idle only, a check engine light and rough idle result in conjunction.
Start by taking a look at the codes, if the check engine light is on, and work from there. Web run the vehicle, you may have to drive it a little, until the check engine light returns. Slowly bring your car to a safe stop and call for roadside.
