Last year around Fall, my CEL and VSC light came on. I've read that a common issue is the gas cap. I replaced a new one and the lights disappeared after 30 minutes of driving. Three months later the lights came back on but disappeared on the same day. Most recently last week it came back on but disappeared a day later so I decided to buy an OBDII scanner and got a couple codes for P0172 (System Too Rich Bank 1) and P0606 (ECM/PCM Processor). I'm not sure what needs to be fixed. The car drives normal. I hope it's nothing major.

 

Sounds like you might need to look into new O2 sensors.

 

The 2 codes is because of a bad ​​​​​​O2 sensor? Do you know the part number? Is it something that needs to be replaced now? Been driving for about 6 months since the lights first came on and it drives normal. Thanks

 

^^^^Did you try to erase the codes?

Lou

 

No I haven't tried to erase the codes.

 

^^^^Well, I would try and see if they come back.

Lou