Group: Members
Posts: 8
Joined: 8-February 08
Member No.: 9,227
Drives: 99 4runner 3.4
Location: usa
I recently was a victim of a catalytic converter theif.Although they didn't succeed in stealing it they damaged the o2 sensor .It was replaced with a aftermarket sensor and the light came back on. Iwas told that only OE sensor would work.Its a 99 4-runner. Any advice would be appreciated.
Group: Members
Posts: 4
Joined: 3-December 08
Member No.: 15,079
Drives: 95 Toyota 4runner sr5 4x4 3.0 automatic
Location: USA
you may have to reset the ECM per the FSM ....some require that the negative battery terminal be removed for so many seconds and drive so many miles to reset the ECM....good luck