Hi, everyone. I have a 2003 ls with av6 77,000 miles I pulled the codes today and got codes p0171 system too lean bank 1, p2197 bank2 sensor 1 stuck lean. The wife had just put a bottle of stp fuel injector cleaner in the tank before coming hime about 30 miles. Now the car does not want to idle. Is code p2197 is an o2 sensor? and is code p0171 on bank 1 caused by code 2197? Has the fuel injector cleaner caused the problem?ayhank you for your time and help