Pickup 4WD V6-180.5 2959cc 3.0L SOHC (3VZ-E) (1990)
Catalytic Converter: Testing and Inspection
Three-way Catalytic Converter
If exhaust system back-pressure and/or exhaust emission levels are excessive, remove the catalytic converter from the car and make a visual check for
plugged, melted or cracked ceramic grid inside. If any of the visible areas are damaged, replace the catalytic converter.