I'm removing catalytic converters, O2 Sensors?
Well I own a 98 Mustang Cobra that came with 4 cats and now has none without the check engine light on. i bought some O2 sensor MIL eliminators for the rear cats and it tricks the computer into thinking the cats are still there. as long as the o2 sensors are still installed in the pipes it shouldn't be a problem(all four of my O2 sensors are still installed just without the cats) this will definitely increase emissions and it's technically illegal for any shop to remove them unless they are replacing them but you may be able to do it yourself. and the only reason why people think the engine runs too rich is because you smell the exhaust more because the cats don't burn up as much of the leftover fumes. hope this helps somewhat. I elaborated as much as possible.
Do clogged Catalytic Converter ruin o2 sensors?
I know a fouled spark plug, causing a misfire will ruin your cat.... but what ruins an 02 sensor? will a clogged cat with high back pressure cause the sensor to fail? or will a clogged "pre-cat" cause the sensor to fail? and my second question if u guys will help me is: will a clogged cat or pre-cat cause a misfire? even if the spark plugs and wires are ok? i read somewhere that due to high backpressure in the exhaust, it will enter back when the exhaust valves open and having those exhaust gases mix with the clean air from the intale valves....is that true? and will that causethe engine to misfire even if the spark plugs look ok?
O2 sensors and Catalytic converter manipulation?
Most states make it illegal to remove the material from the cat, but here's the deal if it's plugged it will actually make the car pollute more, if you remove it here is what can happen. if it has one 02 sensor before the cat and one after the cat then here's whats going to happen, Depending on the year the 02 sensor is only operating when it is first started, when it goes into closed loop the 02 senors will not funtion it is only for warm up proceedure. once the car has reached operating tempature the 02 sensors are taken out of the computer loop, they also only adjust just slightly the amount of fuel, when warming up you want the car to run rich to start faster then lean it out once it's hot. The material inside is a prescious meter so wear a breather when doing it and take the stuff to a metal collector to recycle the material it's expensive, a 5 gallon bucket of the stuff is worth over a thousand dollars. Then when you get the chance replace them, you will notice a little more power and you may get a check engine light comming on but it won't hurt anything.
Was I just ripped off? Catalytic converter or O2 sensor?
The "check engine" light on my 1996 Saturn SL2 came on about a week ago. I decided to take it to Auto Zone for a free test. It pulled code P0140. The guy told me that it could be my catalytic converter, but if my car was running fine and if I didn't notice any rattling, it was likely my O2 sensor. So, I take it to the shop, and they tell me it's my catalytic converter. I asked if they were sure it wasn't the O2 sensor, and he said, "It's definitely the catalytic converter. You need a new one." I found it strange that he didn't offer any explanation, but since I'm incredibly stupid and know nothing about cars, I let them go ahead and put a new one on. It was not cheap. The very next day, while I'm driving home from work, my "check engine" light comes on again. I take it to Auto Zone, and this time, it's pulling code P0133. Doing a little research, it sounds like the O2 sensor! So, here's my question: Was it my O2 sensor all along? My car was running fine. No rattling. No "rotten egg" smell. Normal fuel economy. Did they just say it was my catalytic converter because they knew they could get more money out of me? I realize that it was a dumb move letting them fix a car that was running fine, but it doesn't really seem like they actually fixed whatever was causing my "check engine" light to come on. Help?
If the catalytic converter is removed, will the EGR sensor still be there?
The exhaust gas recirculation valve is a component commonly found on many road going vehicles. It is a part of the vehicle’s exhaust gas recirculation (EGR) system, an emissions system that is designed to recirculate exhaust gases back into the vehicle’s intake in order to reduce cylinder temperatures and NOx emissions. The EGR valve is one of the main components that controls the flow and recirculation of these exhaust gases. When the valve is opened, exhaust gases are allowed through the vehicle’s EGR system to help control vehicle emissions. When the EGR valve has an issue, it can cause problems with the flow and operation of the EGR system, which can lead to increased emissions and performance issues. Usually a bad or failing EGR valve will produce a few symptoms that can alert the driver of a potential issue.1. Engine performance issuesOne of the first symptoms of a problem with the EGR valve is engine performance issues. A clogged or malfunctioning EGR valve can disrupt the vehicle’s air-fuel ratio, which can cause engine performance issues such as a reduction in power, acceleration, and even fuel efficiency.2. Rough idleOne of the most common symptoms of a problem with the vehicle’s EGR valve is a rough idle. It is not uncommon for EGR valves to malfunction and become stuck in the open position. This can lead to exhaust gas recirculation to occur causing a rough idle even when the conditions are not desirable.3. Check Engine Light comes onAn illuminated Check Engine Light is another symptom of bad or failing EGR valve. If the computer detects an issue with the vehicle’s EGR valve circuit or position, it will set off the Check Engine Light in order to notify the driver of the issue. The Check Engine Light can also be activated by a wide variety of other issues, so having the computer scanned for trouble codes is highly recommended.The EGR valve is an important emissions component, especially for vehicles in states with strict emissions regulations. If you suspect that your vehicle’s EGR valve may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if the vehicle needs an EGR valve replacement.
Can a damaged oxygen sensor ruin catalytic converter?
>> they told me it costs like 140 just to find out what part is wrong so Yea... strange shops don't want to work for free. ==== There are 2 sensors that will make the car use much more gas (1) bad o2 sensor (2) bad water temp sensor. But given you got P0421 it is probably bad o2 sensor. === Bad o2 sensor will make your car dump fuel into the piston (making it run rich and bad mpg). That extra fuel has to be finished burning in the cat converter (eventually melting it down). Good Luck....
Will a bad oxygen sensor destroy the catalytic converter on a 1991 cadillac brougham?
SO many people just DON'T get it. There is a LOOP going on here. The O2 sensor send s signal to the IDLE AIR CONTROL VALVE to add More AIR to the injected fuel. THis, in turn, keeps the AIR/FUEL mixture correct and prevents CARBON from forming inside the O2 sensory (electronic nose) and ALSO prevents the converter from clogging up. GM converters had LOTS of troubles fro YEARS< but eventually they improved to the NORMAL range. Your FOOT only adds AIR, not gas, to the injected fuel, and the IAC valve FINE TUNES the amount of AIR entering the engine. A clogged up IAC will CAUSE o2 SENSOR failures and converter clogging. IT is as simple as THAT!