Catalytic converter gets red and lost power

My catalytic converter gets cherry red after 5 minutes of running the car, also I lost power and the engine shakes, the cat was clogged so I replaced,also replace spark plugs and ignition coils but car still do the same thing

My car has 17000 miles.
My car has a manual transmission.

Experienced mechanics share their insights in answering this question :
There’s only one thing that will cause a converter to glow red. That is too much air and fuel. The most common reason is the engine is misfiring. If your engine is shaking, and does not have power, it is misfiring. The catalytic converter is not at fault.

When you replaced your spark plugs and coils, you also should have replace the ignition coil housing. It is known to mechanics as the "battleship". Spark produced by the coils has to travel along metal tabs to reach the plugs. It is common for this part to fail, and when it fails the spark jumps to other cylinders causing the engine to run very poorly. Replace this housing.

If the engine still runs poorly, more diagnostics will be needed. Do not continue to run the engine before it is repaired. If you do, you may have to replace the converter again. If you need help having this checked, a certified professional from YourMechanic can come to your car’s location to diagnose the loss of power in person and pinpoint what repairs are necessary.

How to Identify and Fix Common car Problems ?

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The cat is designed to burn the tiny amount of unburned fuel that comes from a normal engine. Now, if you pour excessive hydrocarbons (fuel) in the exhaust, the cat will burn that too and since it`s burning too much fuel it glows red hot.
A catalytic converter can turn red hot due to an overabundance of fuel being burned in the exhaust system. This occurs when excessive hydrocarbons are introduced into the exhaust, causing the converter to work harder to burn off the excess fuel. The increased burning creates excessive heat, leading to the red-hot glow.
The short answer is yes. A clogged catalytic converter can cause your vehicle to lose power, causing frequent and harder steps on your gas pedal. A clogged converter combined with spark plug misfires can lead to the overheating of your engine.
Among the symptoms of a bad catalytic converter are: Sluggish engine performance. Reduced acceleration.
A catalytic converter in turn gets extremely hot when it has a lot of oxygen coming into it, and that extreme heat re-burns everything that comes out of the engine, including smoke.
An overheated catalytic converter is often the result of excess hydrocarbon (HC) in the exhaust stream. Unburned fuel is entering the catalytic converter and then burning, creating intense heat. The most likely cause for a clogged or damaged catalytic converter substrate is excess unburned fuel in the exhaust.
Driving with Bad Catalytic Converter

If you`re noticing sluggish engine performance, reduced acceleration, a smell of rotten eggs or sulfur from the exhaust, dark exhaust smoke, or extreme heat coming from under the vehicle, these are symptoms of a clogged Catalytic Converter, and it should be repaired soon.

Most catalytic converter failures fall under one of three categories: Overheated, melted or broken converters.
Within the drivetrain, steady-state power losses occur from the following components: the transmission torque converter (in the case of automatic transmissions), the transmission oil pump, clutch pack drag, one-way clutch drag, seal and bearing drag, gear windage and friction, and final drive losses.
Culprits include a dirty fuel filter, clogged fuel tank strainer, clogged or failing fuel injectors, or a defective fuel pump. On most vehicles replacing the fuel filter is a DIY operation.
Decreased Performance

If your converter is clogged, the exhaust build-up in your car can reduce performance drastically. A car with a clogged catalytic converter can feel like it has no acceleration, even if you`re on the gas pedal, or can even fail to start-up.

There`s only one thing that will cause a converter to glow red. That is too much air and fuel. The most common reason is the engine is misfiring. If your engine is shaking, and does not have power, it is misfiring.
Normal operating temperatures of a converter are 500-800°F, and up to 1200°F when the vehicle is under heavy load. To melt the catalytic converter`s substrate, the temperature inside the converter would have to exceed 2000°F.
Catalytic converters get activated and start reducing the emissions only after they reach the light-off temperature, which happens normally around 250-300°C [8].
When a catalytic converter is clogged, it causes a large amount of smoke to surge through the exhaust system. This may lead to frequent stalling or make the car difficult to start at all. If the CAT system has a major blockage, your engine will likely sputter and only start a few seconds later.
A weak or failing fuel pump can cause power loss due to lower fuel pressure and lean mixture conditions. This rarely causes a Check Engine Light to illuminate and should be repaired to avoid catalytic converter damage.
Consider switching to high-octane fuel, at least periodically, if you find that changing to high-octane fuel fixes your catalytic converter problem. The initial change cleans out the catalytic converter, but a permanent switch could maintain it for the life of your vehicle.
Yes, the oxygen sensor can damage the catalytic converter, although the damage is indirect. What actually happens is that the oxygen sensor malfunctions and sends incorrect data to your vehicle`s main computer chip.
Normal operating temperatures of a converter are 500-800°F, and up to 1200°F when the vehicle is under heavy load. To melt the catalytic converter`s substrate, the temperature inside the converter would have to exceed 2000°F.
When the converter first starts showing signs of failure, it will not immediately affect the engine. Left unchecked, however, it will eventually degrade and collapse, plugging the exhaust, which will choke vehicle performance and limit the life of the motor.
Normal operating temperatures of a converter are 500-800°F, and up to 1200°F when the vehicle is under heavy load. To melt the catalytic converter`s substrate, the temperature inside the converter would have to exceed 2000°F.
Normal operating temperatures of a converter are 500-800°F, and up to 1200°F when the vehicle is under heavy load. To melt the catalytic converter`s substrate, the temperature inside the converter would have to exceed 2000°F.
Driving with A Failed Catalytic Converter

If you`re noticing slow powertrain performance, reduced acceleration, a smell of rotten eggs or sulfur from the exhaust, dark exhaust smoke, or extreme heat from under the vehicle, these are symptoms of a clogged Catalytic Converter, and it should be replaced quickly.

Possible causes are an improper fuel mixture, incorrect timing, bad spark plugs, a malfunctioning oxygen sensor, sticking float, defective fuel injector or a faulty check valve. Oxygen Sensor Not Functioning Properly.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Catalytic converter gets red and lost power
ANSWER : There’s only one thing that will cause a converter to glow red. That is too much air and fuel. The most common reason is the engine is misfiring. If your engine is shaking, and does not have power, it is misfiring. The catalytic converter is not at fault.

When you replaced your spark plugs and coils, you also should have replace the ignition coil housing. It is known to mechanics as the "battleship". Spark produced by the coils has to travel along metal tabs to reach the plugs. It is common for this part to fail, and when it fails the spark jumps to other cylinders causing the engine to run very poorly. Replace this housing.

If the engine still runs poorly, more diagnostics will be needed. Do not continue to run the engine before it is repaired. If you do, you may have to replace the converter again. If you need help having this checked, a certified professional from YourMechanic can come to your car’s location to diagnose the loss of power in person and pinpoint what repairs are necessary.

p0171, back fires at idle, lack of power and red hot catalytic conterter?
ANSWER : The P0171 trouble code relates to a "lean condition" and applies generally to many makes and models of cars. This simply means the air/fuel mixture is lean meaning that there is too much oxygen present in relation to the amount of fuel present in the system. This can cause a variety of problems, one of which you are describing which is a catalytic converter failure, turning red hot and stalling or loss of power. The catalytic converter converts otherwise toxic exhaust fumes into less harmful materials to expel into the environment. When this is clogged or not able to pass these fumes out into the atmosphere, it creates an enormous amount of heat in the car’s exhaust system as it backs up (think of a sink being clogged). I would recommend having an expert from YourMechanic come to your home to diagnose and repair the loss of power.

I’m getting power to distributor coil, but I’m not getting power to the spark plugs.
ANSWER : Hi there. Check the spark plugs with a spark adapter tool to see if there is a park induced from the coil. If there is no spark, then the spark plug wires could be burned and need replaced. If the tool is getting spark, then the spark plugs need replaced. If you need further assistance with your ignition system, then seek out a professional, such as one from Your Mechanic, to help you.

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.

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.

My car is having power issues. I get a message that says engine power reduced/ service traction along with headlights flickering and engine cutting out.
ANSWER : Hi there. Check the battery and alternator to the vehicle. With all of the electrical issues that you are having, it sounds as if the battery is not charged and making the engine stall out due to lack power. Check the battery for a 12.6 volt reference and load test the battery. If the battery fails, then replace the battery. If the battery passes, then check the alternator and see if its putting out the full amount of amps. If you need further assistance with electrical issues, then seek out a professional, such as one from Your Mechanic, to help you.

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.

My car died while on the freeway and I lost all power to my headlights, taillights, blinkers, power steering, windows and door loc
ANSWER : Hi there. Power to operate your vehicle during operation is supplied by the alternator. If you lost power to all systems, it will be caused by either the alternator failing, or an electrical relay or connection being damaged. Circuit tests should be performed to prove the failure(s). It could be that the fusible link(s) have burned near the battery positive cable. If the fusible link(s) have burned, the short that caused the failure needs to be identified. It could be a faulty ignition switch is the source of your issues as well. It would be a good idea to have a professional mechanic come to your location and complete an electrical components inspection so they can determine what is causing your problems.