2026-09-15
Lexus GX 460 Catalytic Converter Replacement Malaysia
GX 460 V8 has 4 catalytic converters (2 front manifold cats + 2 rear underfloor cats). Port injection means very low cat clogging risk. OEM replacement for all 4. Symptoms of failure: significant power loss, rotten egg smell under hard acceleration.
Lexus GX Catalytic Converter
- GX 460 uses 1GR-FE V6 (same as Land Cruiser Prado) — two catalytic converters for V6 dual exhaust; parts interchangeable with Prado and FJ Cruiser
- GX off-road cat risk: GX is used for off-road — cat heat shields can be damaged by rocks or debris; inspect shields after any rough terrain driving
- GX P0420/P0430: common at 150,000+ km; confirm with live O2 data — GX's relatively rich idle from V6 can fool diagnostic if not at full operating temperature
- GX catalytic converter: high clearance body-on-frame SUV — theft risk exists; heavier vehicle makes cutting harder but cat shield still recommended for vehicles parked outdoors overnight