Hello,
This codes means there is insufficient switching of the oxygen sensor which means there is either a vacuum leak or and engine misfire or the sensor is bad.
Here are some guides that will help you get the problem fixed.
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
and
https://www.2carpros.com/articles/engine-misfires-or-runs-rough
and
https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor
Please run this test and get back to us we are interested to see what it is.
Cheers, Ken
Jul 12, 2017 at 12:03 PM