For a 2012 Mazda CX5 Diesel, Model# LDA-KE2FW: Will I have problems if I remove the insert of the blocked Catalytic Converter?

I have a 2012 Mazda CX5 Diesel bought from Japan. Model# LDA-KE2FW; Engine# SH-30215830; Chasis#:
KE2FW-103452. The Catalytic Converter is blocked and the diesel in my country is bad. I was advised to remove the insert and run it without the ceramic insert. My concern is that there are a few sensors on the converter and my DFP indicator light was on before it shut down. Would this affect the car's performance or do i need to get a new catalytic converter (which will block up back again).
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
If the DPF filter is plugged up and the DPF light is on, then the DPF filter needs to be replaced. If you were to remove the filter and not use it, then the emissions output will be higher than normal and the DPF light will not go out. I recommend replacing the DPF filter, but if you are still having an issue, then I suggest replacing the catalytic converter system. If you need further assistance with your DPF light being on, then seek out a professional, such as one from Your Mechanic, to help you.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

After the engine has sufficiently warmed up (engine coolant temperature of 80 °C (176 °F) or more), depress the accelerator pedal and drive the vehicle at a speed of 20 km/h (12 mph) or more for about 15 to 20 minutes to eliminate the PM.
Emission Control System (SKYACTIV-G 2.0, SKYACTIV-G 2.5)

This vehicle is equipped with an emission control system (the catalytic converter is part of this system) that enables the vehicle to comply with existing exhaust emissions requirements.

The diesel particulate filter collects and removes most of the particulate matter (PM) in the exhaust gas of a diesel engine.
In MY2012 CX-5s, before Mazda added a software fix, diesel fuel could leak into the oil sump, raising the oil level and potentially damaging the engine. Damaged engines were replaced under warranty but there have been some owner reports of contaminated oil, blown diesel engines and turbo failures since then.
Driving for over 10 minutes at speeds in excess of 40mph will often be sufficient to clear the blockage and regenerate the DPF. You should consult the handbook for your vehicle for more specific guidance on how you should drive to initiate regeneration of the DPF and clear the warning light.
Most DPFs will automatically clear as they`re used but on rare occasions, in specific circumstances, they may get blocked and require manual cleaning. In normal use, a DPF cleans or regenerates itself by reaching a sufficient temperature to burn off the excess soot.
All Mazda diesel powered vehicles have a DPF fitted to help in the reduction of harmful contaminants being expelled into the atmosphere.
The catalytic converter forces the air and gases emitted by the engine to pass through tiny ducts. By removing it, the engine breathes more and develops more power. The sound is also enhanced and fuel consumption can be reduced by up to 10%, depending on the car model.
The DPF light comes on to tell you that there`s a problem with your car`s diesel particulate filter. This is something that has been fitted to diesel cars since 2009 to reduce the amount of soot released through the car`s exhaust system, lowering emissions. This soot is harmful and can cause respiratory problems.
The most common reasons for DPF blockages are: Short journeys where the engine doesn`t reach optimum operating temperature; Clogged EGR Valve increasing diesel soot passed to the DPF; Faulty fuel injectors sending too much fuel to the air/fuel mixture; Incorrect engine oil upon servicing the car ; Turbocharger failure …
The Mazda CX-5 continues the Mazda tradition of producing dependable, owner-pleasing cars, with very few faults reported and generally strong results in customer satisfaction surveys.
The Mazda check engine light could be on for any of the following reasons: There is a problem with the engine`s electrical system. There is a problem with the emission control system. The fuel tank is empty or extremely low.
So it is advised that drivers regularly give their diesel vehicle a good 30 to 50 minute run at sustained speed on a motorway or A-road to help clear the filter.
A DPF pressure sensor is vital to the longevity of the DPF, and if the DPF becomes completely obstructed, the regeneration process will not fix it. It will need to either be removed and professionally cleaned or replaced, both options on average costing thousands of dollars.
So it is advised that drivers regularly give their diesel vehicle a good 30 to 50 minute run at sustained speed on a motorway or A-road to help clear the filter.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

For a 2012 Mazda CX5 Diesel, Model# LDA-KE2FW: Will I have problems if I remove the insert of the blocked Catalytic Converter?
ANSWER : If the DPF filter is plugged up and the DPF light is on, then the DPF filter needs to be replaced. If you were to remove the filter and not use it, then the emissions output will be higher than normal and the DPF light will not go out. I recommend replacing the DPF filter, but if you are still having an issue, then I suggest replacing the catalytic converter system. If you need further assistance with your DPF light being on, then seek out a professional, such as one from Your Mechanic, to help you.

I keep having acceleration problems, the mechanic keeps saying catalytic converter 2006 Pontiac Torrent
ANSWER : Hi there – I would look for a trusted 2nd opinion. Having multiple failures of the same type is both expensive, and an indication that the real source problem is not being discovered. Get the problem codes that are setting the Check Engine light. An auto parts store will do this for you for free on a "time-available" basis. A lean fuel mixture condition shouldn’t be "killing" catalytic converters at the rate you describe (but too rich will). A lean condition could be caused by an air leak in the intake, or malfunctioning oxygen sensors (pre-catalytic converter). I recommend a loss of power inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

Hi Mr. Nicholas: Engine light of my Accord Lx 2010 comes on. I want to be sure the problem is with the catalytic converter or O2 s
ANSWER : Hi there. In short, yes – it is highly probable that the check engine light is not 100% caused by the catalytic converter. Most OBD-II trouble codes related to this system are actually caused by O2 sensor failure, electrical harness failure to O2 and the catalytic converter or other emissions systems. On your Honda, there is one catalytic converter, that is comprised of a few individual sections. When it it replaced however, it is replaced as a single unit. In most cases, when a Honda dealership tells you that the catalytic converter is the source, 80% of the time they are correct. I would recommend reading this article and asking yourself if you are experiencing more than 50% of these are occurring.

Changed catalytic converter, no lights on dashboard, but codes for catalytic converter & O2 sensor still remain
ANSWER : Hi there, thanks for writing in. I am not sure why you changed your catalytic converter. Assuming you had a P0420 code, replacing the catalytic converter should of resolved that code. The codes originally stored need to be cleared. The fact your check engine light remains off tells me, you may have fixed the problem. Try disconnecting the negative battery terminal for at least 2 minutes, reconnect. Start and drive the vehicle for 10-15 miles. Re-check for codes. If a code returns on the first drive cycle (pending code), a problem still exists. The check engine light should come back on (the next drive cycle) if, the fault is recognized by the computer. An exhaust leak before the oxygen sensor will cause O2 sensor and catalytic converter codes. If you are having trouble identifying the fault, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

Does the catalytic converter have to be removed in order to change the oil pan gasket? 2001 Mazda Tribute
ANSWER : Hi there – yes, it is necessary to remove the exhaust manifold and catalytic converter (1 integrated piece) for the front cylinder bank to remove the oil pan and it’s gasket. This is an unfortunate result of the tight packaging in modern vehicles, but thankfully, not required often. For assistance, I recommend an oil pan gasket replacement performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

My catalytic converter is rattling and there is smoke coming from my car. Is the catalytic converter faulty?
ANSWER : It is possible the catalytic converter got hot enough to fail on the last trip you took before this started. No pressure from the exhaust is a good sign that the car can’t breath. This may be because it cannot get enough air or because it cannot exhale.

The only way to confirm definitively is to perform all of the tests the previous mechanic performed to confirm the diagnosis. There are a few other sensors that may cause similar issues, but the scan for diagnostic troubleshooting codes would have alerted you at that point. A muffler shop will be able to confirm if the cat is bad. You can knock on it and see if you hear a rattle of some sort. This is a sign the filter inside has become heated, brittle, and broken off on the inside.

I recommend having a certified mechanic, such as one from YourMechanic, come to you to determine if the catalytic converter needs to be replaced and why smoke is coming from the car.

What would happen if the wrong catalytic converter was installed in my 2001 Toyota Camry
ANSWER : Hello. The wrong converter will cause your check engine light to come on and will cause you to not pass emissions. It can also cause some performance and efficiency issues over time. There are specific converters built for all vehicles and that is what needs to be used, especially in California. You need to take it back to the shop that installed the wrong one as it is against emission regulations to install the wrong converter in California.

Does traction control depend on catalytic converter functioning properly?
ANSWER : You are right, the traction control system is not related in any way to the exhaust system (e.g., the catalytic converter) in the vehicle. Traction control involves wheel speed sensors, the ABS system, and electronic controllers. If there is a problem with the traction control system on your vehicle, it is likely that diagnostic trouble codes have been stored and those codes will provide the key clues to finding, and repairing, the fault in the system. A certified Mechanic, dispatched by YourMechanic right to your location, can perform a traction control system diagnostic and let you know of the required repairs. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.