Hello !
We need help,with our 2005 Chrysler Pacifica -3.5, 94K
Change the cat. convertor,sparks plugs, both O2 sensors,erase the Service engine ,but after 10-15 min. light is On again.
Please anyone have a clue about this problem ?
Thanks

 

P2097-down stream fuel system 1/2 rich
possible causes
good trip equal to zero
exhaust leak
engine mechanical problem
o2 sensor
o2 signal circuit
o2 return circuit
fuel contamination

 

Thanks .