Shawnwalker000

Hi i have a 1997 audi a4 quattro 2.8. I recently put in both pre cat o2 sensors and now my vehicle loses acceleration power when driving normal and after moving from slowing down. I have to shut the vehiclw off and turn it back on in order for there to be acceleration. I have checked all hoses for leaks and cleaned out the Crankcase Breather pipe hoses cause there was whitish yelliw goo in them. I am lost for answers here. It accelerates fine before puting in new o2 sensors.