My 1997 Toyota automatic 4runner sr5 is giving error code p0113. I assume I need a new oxygen sensor, but how do I know which one to get on a site like autozone? There are types listed for both before and after the catalytic converter.
Usually the best thing to do is to replace all your oxygen sensors at the same time. However this may differ from vehicle to vehicle. Your best bet is to get yourself a repair manual with information on this.