2018 Lincoln MKX Engine Problems

My vehicle has had emissions vehicle since before I owned it up to now. The catalytic converter has been replaced 4 times which is unheard of. Its presently giving the same codes/issues. The last catalytic converter replacement was November of 2024. It has to be a computer programming issue as my mechanic express. Im asking that this be looked into by Ford. I've owned 1973 Ford Pinto as a teenager, a 1998 Ford Explorer, 2000 Lincoln navigator, 2005 Lincoln aviator and now this 2018 Lincoln mkx has been the only vehicle with this type of issue. Maintenance records can prove this vehicle has properly been maintained before and during my ownership. I only use Shell, sunoco and other top tier 87 octane gasoline in this vehicle and have records of that too. P0430 code has come back on even after replacing the purge valve twice, 2025 and last month 2026, then code p0430 came back stating catalytic converter smh.

Faulty catalytic converters. Ford has a CSP for the 2018 Lincoln mkx 3.7L engine and only included police driven Mkx's which is totally unfair when they're well aware that Faulty/failing emissions catalytic converters were installed on all of them and they fail and produce p0430 codes regardless of driving habits, I've never driven any of my vehicles harshly and maintain my vehicles, yet since I've owned this 2018 mkx since September of 2024, the rear catalytic converter had to be replaced and now the front catalytic converter is giving the same p0430 permanent code. Its bias of Ford to only extend police vehicles coverage and not regular consumers knowing that this emissions part is faulty because catalytic converters don't normally fail prematurely unless the parts are faulty. The original owner maintained this vehicle before me and I've maintained it since I've owned it, yet the catalytic converter has been replaced 3 times (carfax) which proves its Faulty. My 2005 Lincoln aviator had 303,000 miles before the engine blew, yet the catalytic converter had never been changed and I owned it for 15 years. I'd like an explanation from Ford as to why my 2018 Lincoln mkx 3.7L engine vehicle wasn't included in the CSP19M01. Ive owned a ford Explorer, Lincoln navigator and aviator that were built ford tough but this Lincoln mkx seems to be worse than a BMW. Thanking you in advance for your timely response. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2018 Lincoln MKX. The contact stated that while driving at an undisclosed speed, the check engine warning light was intermittently illuminated. The vehicle was taken to a local independent mechanic, where the vehicle was scanned, and a fault code for the catalytic converter was retrieved. The local dealer was contacted and referred the contact to the manufacturer for assistance. Upon further investigation, the contact related the failure to an unknown NHTSA Campaign; however, the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 75,000.