Pt Cruiser Codes P2097 What Does What Does DOWN STREAM FUEL SYSTEM 1/2 RICH Mean?

What does what does DOWN STREAM FUEL SYSTEM 1/2 RICH mean? - pt cruiser codes p2097

Hello,

I have a PT Cruiser 2006 with 33k miles.

I was driving and the check engine light came on, steady and not blinking.

These are all the time that I start now. and Saturday evenings, when there is no service center is an open question.

I wonder if a fuel injector cleaner is a simple solution.

The code that I got was P2097.

Downstream FUEL 1 / 2 RICO

Thank you!