J jeb New member Jul 26, 2005 #1 90 model 4runner with 200k and original cat and o2 sensor, should they be replaced? Is there any reason to replace?
90 model 4runner with 200k and original cat and o2 sensor, should they be replaced? Is there any reason to replace?
Casper New member Jul 27, 2005 #2 The 02 sensors should be replaced about every 60K miles...the cats unless they are showing Fault codes should be replaced when needed...although 100K miles is a good bench mark for it
The 02 sensors should be replaced about every 60K miles...the cats unless they are showing Fault codes should be replaced when needed...although 100K miles is a good bench mark for it
