Hi I am new to Forum , and I try to repair issues on my own, but ready to pull hair out . 2006 range rover , 4.4 215k , I have replaced both cats, with EDC convertor, Heavy Load , all 4 / 02 sensors (DENSO), Mass Sensor ( DENSO) Both Thermostats, upper, lower (Corrected P0128 )Coolant temp sensor Oil Temp sensor, plugs, smoke tested , and propane tested , for vacuum leaks Non ethanol fuel. , Fuel filter, Code 2098, 2096 , comes right back after 2 drive cycle. Long term fuel is 3-5 idle or under load . does not seem to change any suggestion ??
can not pass emission. Can you assist ? Thanks in advance .