2026-09-15
Lexus RC 200t/300h/350 Catalytic Converter Malaysia
RC 200t: 1 manifold-integrated cat. RC 350 (V6): 2 cats. RC F (V8): 4 cats. Direct injection models (RC 200t, RC 350) at high mileage — oil burning fouls the cat. OEM replacement: RC 200t; RC 350. Monitor for P0420 code on high-mileage units.
Lexus RC Catalytic Converter
- RC 200t/300 uses turbo 8AR-FTS; RC 350 uses 2GR-FKS V6 — RC 350 has two cats (one per V6 bank); RC 200t has single cat but sees higher exhaust temperatures from turbo
- RC sport driving cat impact: aggressive driving creates repeated high-exhaust-temperature cycles — thermal stress on cats is higher than on ES/RX driven sedately
- RC P0420: confirm O2 sensor operation first — RC's sportier tune makes fuel trims more dynamic; check short-term and long-term fuel trims are within ±10% before condemning cat
- RC catalytic converter: lower sports car stance means cat closer to ground — inspect heat shields and cat fasteners for road damage; tighter clearances than SUVs