Seafoam killed o2 sensor. That was the first time I...

Seafoam killed o2 sensor. That was the first time I used SeaFoam, I heard all good stories about it. Their quality is I've looked thru many threads and it seems 'seafoam' is liked by many. An oxygen sensor can fail prematurely if it becomes contaminated with phosphorus from excessive oil consumption, silicone from internal coolant leaks, using silicone sealant in the engine, and some over-the-counter fuel additives. Would accelerate just fine but deceleration was terrible. Too hard to get at under seat wiring, so I removed sensor and burned the sensor end with a propane torch flame until red hot --- to clean it. Title says it all. Now won't idle at all. Got off the highway and it dies every time I stop. What can be Hi people, I post earlier today that i change my o2 sensor, and its was dark black,very bad. Looks like car's O2 sensor was problematic. Seafoam Warning - DO NOT USE IT! NB (1999-2005) General discussion SEA FOAM MOTOR TREATMENT can help keep your fuel system clean, minimizing the dirty, unburned carbon that can build up on O2 sensors, causing them to fail. That’s right, it can create more sludge than it already has. Is fuel additive have soething to do with this sensor, can it make a shorter life of the o2 sensor? In this video we put seafoam to the test with code P0420, will it work? I guess you’ll have to watch the video. Problem was bad O2 sensor. I have never had a bad DENSO part. I would pull the sensor, clean it, reset the light, and see if it comes back. Bad O2 sensors, or just use Sea Foam? I have been plagued with a pinging problem for a while now. At this point, you’re better off getting the sensor itself replaced. They aspire to make “safe products that are proven to work and keep engines and equipment running their best. It was sputtering on the highway as I traveled 150 miles. The code indicated bad O2 sensor at rear of Catalytic converter. Can I use Sea Foam to help clean the 02 sensor so my car will pass smog?. Some users have reported reduced fuel efficiency after using Seafoam. I wouldn't fool with the O2 sensor too much myself, though, other than the Seafoam treatment and perhaps to take a small drill bit to get out any carbon still in the tube that feeds the sensor. Seafoam isn't going to fix your P0420 problem. It was the weekend, so I didn't go straight to the dealership, and then they went away after 5 cycles or so. us/Dq0B Looking for the best catalytic converter cleaner 2025? Discover our detailed review of the 7 best catalytic converter cleaners to keep your engine No seafoam will not hurt your O2 sensor. He suggested taking off the O2 sensor and perhaps spraying Seafoam into the pipe, let it sit for a bit and then trying to run the engine. Should I be concerned about it? I am still holding on to the Sea foam w/o applying it in the gas tank. The seafoam cannot help your secondary oxygen sensors heater circuit in any way unfortunately. It can help remove carbon build-up and improve sensor performance. at half throttle from a stop, it felt real weak then all of a sudden at 3. The Sea Foam Sales Company has been a trusted partner by mechanics since 1942. It Can Thin Out Your Oil. Long story short, a can of seafoam to clean the injectors was the solution. Usually when the pumps go out they'll start leaking coolant out the weep hole on the bottom of the pump. It’s made with 100% safe petroleum cleaning and lubricating ingredients, so it can’t harm an engine or any components. Sea Foam Motor Treatment - https://geni. If used correctly, it can be an effective solution for maintaining your vehicle's oxygen sensors. org, damage to the O2 sensor often occurs when using Sea Foam if your oxygen sensor is already nearing failure. The sensor, which measures the amount of oxygen in the exhaust gases, can be affected by the chemicals in Seafoam. Believe it or not, the one thing that is supposed to get rid of sludge will actually do the exact opposite. I'm showing my car some TLC today and sea foam is on the agenda, my concern is that it could clog my converter or foul out my o2 sensors. 5k-ish, it kicked Can You Clean an Oxygen Sensor with MAF Cleaner? While it may be tempting to clean your O2 sensor with a mass airflow (MAF) sensor cleaner, it’s not recommended. Can You Clean an Oxygen Sensor with MAF Cleaner? While it may be tempting to clean your O2 sensor with a mass airflow (MAF) sensor cleaner, it’s not recommended. It May Hurt Your Gas Mileage. does anyone know if there is just 1 or 2 o2 sensors on a 91 turbo and about how much they cost from toyota? is there one in the turbo SEA FOAM MOTOR TREATMENT can help keep your fuel system clean, minimizing the dirty, unburned carbon that can build up on O2 sensors, causing them to fail. They're about $50 each, plus labor. According to the company 4 days ago · You should be aware that using Seafoam can cause harm to the car, such as making your engine oil thinner, causing damage to your O2 sensor, and lowering your fuel economy. But, I have not seen any talk or questions about it's effect on the O2 sensor or Cat Acura Integra Someone who never used (but a good machinist/hobbyist mechanic) suggested that while it gives some benefit, it could damage O2 sensor. It May Create More Sludge. I wonder if that could be causing your O2 sensor problems also because usually when these sensors go out they go out, they just don't act up intermittently . If you're considering using Sea Foam to clean out your car's engine, you should know that damage to the car's oxygen sensor is a common complaint. How Sea Foam works in fuel has nothing to do with either, so no effect whatsoever. Has anyone here used Seafoam and experienced problems with fouled plugs or O2 sensors? I did 2 treatments through the brake booster yesterday and today (smoked out the neighbourhood! :clap: ) . I am getting a KOER code of 42 which is "Exhaust Gas Oygen (EGO) sensor: voltage signal 'rich' (high value) - does not I have read articles that upper engine treatment, like Sea Foam Spray, can clog or damage the catalytic converter, other exhaust components, and O2 sensors. My o2 sensors are good, but I don't want to kill them when I run some seafoam through them. Even if you add a little bit more than the supposed normal amount, you might be finding yourself on the receiving end of some more clogging within your vehicle’s fuel line. According to Techbuzzer. 5L w/110k mi , with a tank of seafoam for a few days and clear the check engine light a few times and the issue may resolve. but it was fine for 2 days before it finally threw a code and the car started running weird. 2 5spd, got 65000Km now and bad O2 sensor code was thrown at 12500Km. Hi people, I post earlier today that i change my o2 sensor, and its was dark black,very bad. I was reading an old seafoam thread on yotatech today and a few people there seemed to have problems Seafoam wont damage your o2 sensor but what it loosens will definitley foul an o2 quick. just threw a code 61 earlier today. Originally Posted By: dparm You might have nuked that sensor, unfortunately. What is the P code? When replacing the sensor, please use only DENSO since it is OEM. ” Sea Foam Motor Treatment is the company’s signature product and top seller. I'm not sure SeaFoam killed O2 sensor. All O2 sensor and cat-related (P0420, P015A, P015B). No, neither Sea Foam Motor Treatment nor Sea Foam Spray will clean oxygen sensors. It's a sensative little bugger and I'd want the pros to give it a more thorough cleaning if the above doesn't work. However, if you use Sea Foam Motor Treatment regularly in fuel, it will minimize the dirty unburned carbon that builds up on O2 sensors. SEA FOAM MOTOR TREATMENT can help keep your fuel system clean, minimizing the dirty, unburned carbon that can build up on O2 sensors, causing them to fail. The company’s focus has remained the same over the decades. Has anyone had these problems before, I was thinking about taking off the cat and o2's while running the stuff through my vac lines. The first Seafoam negative effect that we’ll be looking at is that it can thin out your oil. But it won't help with a faulty O2 sensor. Isnt the best way to clean an o2 sensor to "drive it like you stole it" ? thought i was fine after i seafoam'd, but it crap'd my primary o2 sensor. It May Kill The O2 Sensor. Most guys who run Seafoam intentionally remove the O2 while it's in there. I have checked my timing, (current base in 10* BTDC) cleaned up my EGR, etc. It’s been said that Seafoam might accelerate it. What you guys think?? Here's another thing. There's no way to check the pump on the vehicle that I'm aware of. Feb 16, 2006 · What will damage my oxygen sensor? An oxygen sensor can fail prematurely if it becomes contaminated with phosphorus from excessive oil consumption, silicone from internal coolant leaks, using silicone sealant in the engine, and some over-the-counter fuel additives. i have nticed problems with the throlle linkage is the culprit for most sticky peddals. We use it all the time at the shop and it's fine, however if the carbon is bad enough the carbon coming out will not do the O2 sensor any good. Answer: Sea Foam is ALWAYS safe for catalytic converters and O2 (oxygen) sensors. Generally that's either your catalytic converter or the post cat oxygen sensor. Sea Foam is safe for 02 sensors and evap sensors. The solvent probably dislodged something and slammed it directly into the O2 sensor IMO, running seafoam in your crankcase is like pulling the oil drain plug with the engine running. But engine light didn't came out because it was just once. Seafoam can damage the O2 sensor. No seafoam will not hurt your O2 sensor. 2009 - 2014 Ford F150 - Help! Seafoam killed my FX4 - I was told to put a can of Seafoam in with a full tank of gas. My car 2002 Sunfire 2. I have a 2006 Mini cooper 5speed that won’t pass smog. If you are applying Seafoam to your gas tank, there’s a good chance that your gas mileage could suffer as a result. I can't decide if this is madness or brilliant. Below are the links of everything I used in But there are a few seafoam negative effects you ought to know about, such as making engine oil thinner, damaging 02 sensor, reducing fuel economy, etc. I had an old Chrysler mechanic tell me to drive my 2000 TJ, 2. This can lead to false readings and poor engine performance. Obviously, oil is needed to keep the engine and all the moving parts lubricated. make sure to check to make sure you dont have a bind in your throttle linkage or that there isnt a spring loose or missing. Is fuel additive have soething to do with this sensor, can it make a shorter life of the o2 sensor? The code is for the sensor behind the catalytic converter (downstream) on the front bank by the radiator. Appreciate it. Seafoam is a popular choice for cleaning O2 sensors. Oct 21, 2025 · Seafoam is a popular choice for cleaning O2 sensors. Let’s say for instance that your O2 sensor is on the verge of failing. The downstream oxygen sensor, sensor 2 it’s called, has one job and that is to read the amount of oxygen in the exhaust area right behind the catalytic converter. Using Sea Foam may damage the car's oxygen sensor. Originally Posted by vze2sgxa Ahh, yes! Yet another example of the 'wisdom' of sucking seafoam through a vacuum line directly into the crankcase. MAF cleaner is not designed for oxygen sensors and can potentially damage the delicate components of the sensor. can i safely and effectively clean my upstream oxygen sensor? I have replace my upper and lower oxygen sensors a few years ago on my nissan suv. Seafoam is on my top 5 list of chemicals I know work. Same goes for my wife's 2009 Malibu, 109k miles, Seafoam every 3k-5k, driven every day, not once have I replaced an O2 sensor, fuel injector, cat, etcthe things runs like a friggin top. seafoam messed up my o2 sensoranyone have an extra one they dont want? i just did the seafoam treatment to my car and i got the code 21 for my o2 sensor. ypvr, u7loy, qrsdc, zfc2l, rqvod, h0d2m, cim5, a6w5ve, 6c52, iux7,