dummy o2 sensor ford dummy o2 sensor ford

I am thinking about gutting my cats on 2000 F-150, I know they make a dummy O2 sensor for the mustangs, is there one out for a F-150, or will the one for the stangs work on my truck. A popular modification is to decat the exhaust or install an aftermarket header, to unlock the output. I ve messed with all kinds of setups on it and I can't get it any louder. #3. Pro Street Online is not responsible for any damage to you or your car however directly or indirectly, please be responsible and perform this job safely and legally. Required fields are marked *. Oxygen sensor simulator is a racing part. The Ford F-150 has a dummy O2 sensor that is used for emissions testing. Add to Cart. The ECU then adjusts the amount of fuel being injected into the engine. The improper air-fuel mixture can lead to a number of long-term problems for the engine, so try to replace the O2 sensors as soon as possible. An O2 simulator also known as a dummy oxygen sensor used to bypass the oxygen sensor is a device that can be used to trick a car's computer into thinking that the car's exhaust system is functioning normally, even if it is not. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); The only way to bypass an oxygen sensor (also known as an O2 sensor) is to, The oxygen sensor in your vehicle controls the air to fuel ratio. yeah its an offense but what they dont know wont hurt them. Gently lower the vehicle back down on the stands. for Peugeot Partner 1.6L Certified Automotive Diagnostic Technician. To test the O2 sensor, you must first find the wires that run to it. The sensor sends this information to the engine control unit (ECU), which adjusts the air/fuel mixture to optimize engine performance and reduce emissions. 28 of 35 people found this review helpful. Its best to wait for a few minutes after disconnecting the battery to ensure that theres no residual electrical charge in the system. ? MIL eliminators Is that the only way around the oxygen sensors? C $118.2. Check if this fits your Ford F150. The process of bypassing an oxygen sensor such that the sensor does not rely the correct information to the Electronic Control Module is known as faking an oxygen sensor. the government is gettig to far into our personal lives anyway. Specific connectors would make the hook up far more easy but everythnig is fine and dandy as it was suppose to. EZ CEL FIX Oxygen Sensor Simulator Dont want to waste your time installing oxygen sensor bypass gadgets that will never rid you of the CEL for good? Turn off the engine temporarily while you set up the connectors. we have always strived to provide the best possible service experience and quality, Thanks You will need a resistor of ~12 ohms, you can combine resistors to maximize the amount of voltage being bled off. Before you begin the process of bypassing the O2 sensor, its important to take the necessary safety precautions. The oxygen sensor is responsible for monitoring the amount of unburned oxygen in the exhaust as it exits the vehicle. Using the front jack point of the vehicle, jack up the car. Dedicated Human Technical Support for retail orders ceased to exist. I hope that you find everything you need on our website and that we can help guide you through all your automotive needs. Please be aware of the bylaws and regulations, O2 sensor eliminator is not street legal in several US states and countries. I imagine a dummy sensor from a Mustang would work, might have to splice the harness instead of using the connector. Step 4: Remove the oxygen sensor from the vehicle by turning it counterclockwise with an O2 sensor removal tool. These sensors are often used in industrial and commercial settings, as well as in some homes. If everything is working as it should, you have successfully bypassed the O2 sensor on your Ford F150. (Emanuel County, Georgia, USA), reviewed for This is an important safety precaution to avoid any electrical shock while working on the vehicles electrical system. To turn off the rear O2 sensor, simply remove it from the car. Sunday, 9:49 AM. In this article, we give step-by-step directions on how to work around the oxygen sensors. Feel free to. for Isuzu Trooper 2.6L His passion for auto electrics and his ability to solve technical problems quickly and efficiently is what sets him apart. A dummy O2 sensor is a type of oxygen sensor that is used to measure the amount of oxygen in a given space. All Magnum upgrades are inspected prior to shipping and covered by extended defects warranty. Copyright 2023 Mechanic Base. A dummy O2 sensor is a fake oxygen sensor that is inserted into the exhaust system to fool the engine computer into thinking that the oxygen levels in the exhaust are normal. Reviews about simulators are all over the board on the net, I hope my goo experience will deliver better cred to these devices. They have a very real O2 sensor connected to them and sniff your exhaust to determine your air to fuel ratio. Company seems reliable and their more than willing to assist you even beforehand. Hi your article is a bit confusing which is it, 5 50ohm/12watt resistor is that 1 resistor @ 50ohms or 5 of them ? Based on this information, the computer can make adjustments to the air/fuel mixture to ensure optimal performance and . It will however light up the check light on your dashboard and to get rid of it, you will either need to install an O2 sensor simulator or reprogram the ECM. SKU # 97216. Please register or login to enable Dark Mode. 2002 SVT Focus: #3279 of 4288. This means that your car will not be able to adjust the air/fuel mixture to compensate for any changes in altitude or weather conditions, and it may cause your car to run poorly or even damage the engine. As far as oxygen sensor location goes, things are quite simple: Sensor 1 is the upstream oxygen sensor. Im assuming post/after convertor. With minimum efforts you can remedy the ECM safe / limp mode all on your own, as long as you are mechanical and electrical minded. There are a few different ways to make an O2 simulator. The oxygen sensor is located in the exhaust system and monitors the air/fuel mixture. Carefully unplug the wiring attached to the sensor.You must squeeze the tab to release it before pulling it away from its housing. Reviewed by francesco (OH-6, Ohio, USA), reviewed for A vehicle's emissions control system is composed of oxygen sensors, and it could be legal to replace the O2 sensor with a dummy one.Click to see full answer. this should work on 99 to present and is 100% revesable. EZ CEL Fix oxygen sensor simulator is made to prevent the engine management warning light from illuminating and to prevent an Electronic Engine Management code from tripping when the catalyst converter is gutted or a header installed. This step ensures that the reading will be accurate. I figure one more gutted cat won't hurt nothing. I'm not bad person for gutting the cats, just want a louder sound, ya know, hope ya understand. EZ CEL FIX Oxygen Sensor Simulator Not so much for engine timing as it is for determining ideal fuel delivery. interest toward our mods necessitated changes in our business model. If you have O2 sensors aft of the converters and remove the converters it WILL throw a code and WILL adjust the fuel air mixture. With the rear O2 sensor completely removed, you can modify it on your work table or where ever you want, instead of cutting and splicing while underneath your rig. However, bypassing oxygen sensors may be illegal depending on where you live and you will end up with a check engine light or performance issues unless you reprogram the engine control module for the removal of the oxygen sensor. Im not a die harder so I was not concerned with deleting the light but no way to pass emissions without this piggyback. The only way to bypass an oxygen sensor (also known as an O2 sensor) is to run a dummy on its output. Your email address will not be published. The oxygen sensor on a cars exhaust is used to determine how efficiently the fuel mixture is to an engine. If the output is less than 95% it throws the P0420 code. Tuesday, 2:15 AM. You will need a back probe and a digital voltmeter. With minimum efforts you can remedy the ECM safe / limp mode all on your own, as long as you are mechanical and electrical minded. it works.. well, at least it worked for me. We set up an efficient semi-automated Support Center available 24/7 which serves all your needs be it a If you want to remove the first sensor before the catalytic converter, you will need an O2 sensor simulator, which can be found online. The oxygen sensors are a vital part of measuring the amount of oxygen in the gas. It's mearly a bandaid for a clogging cat or failing 02 sensor. EZ CEL FIX Oxygen Sensor Simulator Exhaust gas is controlled through 2 to up to 4 exhaust air fuel sensors. EZ CEL FIX Oxygen Sensor Simulator Highest quality on the market, I'm very pleased. for Proton Persona 1.5L Dummy O2 sensor replaces the original and always sends . Sunday, 11:42 AM. Step 4: Disconnect the O2 Sensor. for Hyundai i30 1.6L This articleis intended for those who happen to own a performance vehicle meant for off-road use only. Oxygen sensors are part of the vehicle's emissions control system and it may or may not be legal to replace the O2 sensor with a dummy sensor. There are 2 kinds of sensor/gauge kits out there; Narrow band & wide band. When the air/fuel ratio is "balanced" it is at 14.7 parts of air to 1 part of fuel by weight. First, disconnect the negative battery cable. Apr 17, 2009. The oxygen sensor in your vehicle controls the air to fuel ratio. Conduct the setup and enjoy the engine management warning light-free driving. Still works and turned off cat efficiency codes has been present ever since I installed my new true dual catback. Exponentially increasing The 02 simulator we are putting together today best simulates a 4 wire oxygen sensor, and usually gets you in the right range for your check engine light to go off. 31 of 33 people found this review helpful. 19 of 23 people found this review helpful. Now, all modern cars feature oxygen sensors. Reviewed by kirk i., ses designer If your check engine light is on, one possible cause could be a faulty oxygen sensor. They usually use resistors and capacitors. . If there is too much oxygen in the exhaust, the fuel mixture is too lean, but too little oxygen indicates . The only way to bypass an oxygen sensor (also known as an O2 sensor) is to run a dummy on its output. Bypassing this sensor will not affect engine performance, but you will need to reprogram the ECU to get rid of the check engine light. (Johnson City, USA), reviewed for You can also create a vacuum leak to check how the sensor deals with a lean mixture. Oxygen sensor simulator /is designed to do away with O2 sensor related check engine light issues/s have long been the best way to make the engine more efficient, and this new Ford Oxygen sensor bypass is no different. If there is no oxygen sensor, the ECU will not know when to adjust the fuel/air mixture, and your car will either run too rich (lots of unburned fuel) or too lean (not enough fuel). An O2 simulator is a very small-circuit board plug-in embedded into a housing to provide a waterproof . A muffler shop can easily put a new bung in for the missing O2 sensor. However, substituting the original sensor with a dummy sensor is a simple way to fake out an oxygen sensor. You will also see a check engine light on your dashboard. There are only disadvantages. The oxygen sensor is responsible for monitoring the amount of unburned oxygen in the exhaust as it exits the vehicle. Kevin and overall the staff was very nice and pleasant, helpful and kindly listened to my dilemma with hollowed cats and polished headers. EZ CEL FIX Oxygen Sensor Simulator It was created from High-Temperature Cofired Ceramic (HTCC), making it more efficient. This sensor is located in the exhaust system and is used to measure the oxygen content of the exhaust gases. The engine should run smoothly without any issues. 1997 - 2003 Ford F150 - Dummy o2 Sensors? Headers require both up- and downstream Oxygen sensor simulation. Ford oxygen sensor simulator will allow you to drive without converter and still keep the warning light off. for Mercedes CLK55 AMG 5.5L Saturday, 7:25 PM. CAR TRUCK SUV ECU PERFORMANCE CHIPS / FUEL SAVERS water4gas, Car - Truck Performance Chips - Oxygen O2 Sensor Simulators, Ford 4.9L Gas Fuel Injection O2 Sensor Eliminator, Ford 5.0L Gas Fuel Injection O2 Sensor Eliminator, Ford 5.4L Gas Fuel Injection O2 Sensor Eliminator, Ford 5.8L Gas Fuel Injection O2 Sensor Eliminator, Ford 6.0L Gas Fuel Injection O2 Sensor Eliminator, Ford 6.2L Gas Fuel Injection O2 Sensor Eliminator, Ford 6.4L Gas Fuel Injection O2 Sensor Eliminator, Ford 6.6L Gas Fuel Injection O2 Sensor Eliminator, Ford 6.7L Gas Fuel Injection O2 Sensor Eliminator, Ford 6.8L Gas Fuel Injection O2 Sensor Eliminator, Ford 6.8L V10 305HP Triton O2 Sensor Eliminator, Ford 6.8L V10 320HP Triton O2 Sensor Eliminator, Ford 6.9L Gas Fuel Injection O2 Sensor Eliminator, Ford 7.3L Gas Fuel Injection O2 Sensor Eliminator, Ford 7.5L Gas Fuel Injection O2 Sensor Eliminator, Ford Country Squire O2 Sensor Eliminator, Ford Crown Victoria O2 Sensor Eliminator, Ford Custom Chassis O2 Sensor Eliminator, Ford Econoline 350 Super Duty O2 Sensor Eliminator, Ford Edge Titanium O2 Sensor Eliminator, Ford Escape Hybrid O2 Sensor Eliminator, Ford Escape Titanium O2 Sensor Eliminator, Ford Excursion 4?4 O2 Sensor Eliminator, Ford Excursion 44 O2 Sensor Eliminator, Ford Explorer Sport O2 Sensor Eliminator, Ford Explorer Sport Trac O2 Sensor Eliminator, Ford F-150 King Ranch O2 Sensor Eliminator, Ford F-150 Limited O2 Sensor Eliminator, Ford F-150 Platinum O2 Sensor Eliminator, Ford F-650 super duty O2 Sensor Eliminator, Ford F-750 super duty O2 Sensor Eliminator, Ford Fusion Energi O2 Sensor Eliminator, Ford Fusion Hybrid O2 Sensor Eliminator, Ford Fusion Titanium O2 Sensor Eliminator, Ford Heavy Duty Truck O2 Sensor Eliminator, Ford LTD Crown Victoria O2 Sensor Eliminator, Ford Mustang Fastback O2 Sensor Eliminator, Ford Mustang GT Fastback O2 Sensor Eliminator, Ford Mustang GT Premium O2 Sensor Eliminator, Ford Mustang Mach 1 O2 Sensor Eliminator, Ford Mustang Shelby O2 Sensor Eliminator, Ford Mustang Shelby GT350 O2 Sensor Eliminator, Ford Mustang Shelby GT350R O2 Sensor Eliminator, Ford Mustang Shelby GT500 O2 Sensor Eliminator, Ford Pickup F-Serie O2 Sensor Eliminator, Ford Police Interceptor Sedan O2 Sensor Eliminator, Ford Police Interceptor Utility O2 Sensor Eliminator, Ford powered by Ford engine 4.9L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Ford engine 5.0L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Ford engine 5.4L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Ford engine 5.8L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Ford engine 6.0L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Ford engine 6.2L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Ford engine 6.4L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Ford engine 6.6L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Ford engine 6.7L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Ford engine 6.8L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Ford engine 6.9L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Ford engine 7.3L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Ford engine 7.5L Gas Fuel Injection O2 Sensor Eliminator, Ford powered by Magnum engine 3.9L V6 w/ fuel injection O2 Sensor Eliminator, Ford powered by Magnum engine 3.9L V6 with fuel injection O2 Sensor Eliminator, Ford powered by Magnum engine 5.2L V8 w/ fuel injection O2 Sensor Eliminator, Ford powered by Magnum engine 5.2L V8 with fuel injection O2 Sensor Eliminator, Ford powered by Magnum engine 5.9L V8 w/ fuel injection O2 Sensor Eliminator, Ford powered by Magnum engine 5.9L V8 with fuel injection O2 Sensor Eliminator, Ford powered by Magnum engine 8.0L V10 w/ fuel injection O2 Sensor Eliminator, Ford powered by Magnum engine 8.0L V10 with fuel injection O2 Sensor Eliminator, Ford Sierra - Sapphire O2 Sensor Eliminator, Ford Tourneo Connect O2 Sensor Eliminator, Ford Transit Connect O2 Sensor Eliminator, Ford O2 Sensor Eliminator MAGNUM EZ CEL FIX Oxygen Sensor Simulator. You are right its 1 resistor @ 50ohms. O2 Simulator Mini Cat, Angled, Straight Cel Fix, Big Daddies Garage stainless steel Oxygen Sensor Simulator is used to clear p0420 / p0430 codes for bad or missing catalytic converters. To bypass an oxygen sensor in a car, you can either use a dummy oxygen sensor or replace it with a resistor with the correct resistance. Theres also the option to do a propane enrichment test. Sep 27, 2007. 1,137 sold. On a Ford F150, it is usually found on the rear bank of cylinders. BOSCH 15717 Actual OE Oxygen Sensor; Bosch Engineered Oxygen Sensor Info . Reviewed by Lena K., ASE certified car technician Then, locate the correct connector position and remove it from the retaining clip. If everything looks good, you want to start the car engine. Find the O2 sensor that needs to be removed. Next, clean up any debris in the area around where the new sensor will be installed and screw it in until its snug but dont overtighten it. Put a new grommet in the hole in the floor to keep the water out. The good news is, if you end up discovering that the . Unplugging the O2 sensor will disable it and prevent it from sending any signals to the ECU. No, bypassing the O2 sensor will not cause harm to your Ford F150, but it can affect its performance and emissions. The new O2 simulator should come with a wiring harness that connects to the existing wiring in the vehicle. Or, it may exhibit none at all. Dummy O2 sensors are typically placed in areas where there is a lot of activity or where there is a potential for fire or explosion. Sorry Rick, my wording could use some improvement. Ways to Featherbed Oxygen/O2 Sensor: Dummy Oxygen Sensor. The Magnum Ford Oxygen Sensor Simulator is carefully calibrated to mimic the signal from the exhaust air fuel sensor to keep it in the range the ECM is expecting to see. If the catalytic converter is in good condition, this oxygen sensor takes more time to change its voltage than the #1 sensor placed before the catalytic . To get around this, you can bypass the rear O2 sensor by generating a false sensor reading using a dummy O2 sensor. EZ CEL FIX Oxygen Sensor Simulator This will cause decreased performance, increased emissions, and possibly even engine damage. Install the dummy O2 sensor (also called an O2 sensor simulator) by turning it clockwise into the exhaust just as . Headers or precat gutting requires upstream simulator as well. A failing oxygen sensor can cause decreased fuel economy, increased emissions, and potentially damage your catalytic converter. Check with your local state representation for further clarification. mother in law eliminator? Turn off that annoying check engine light! Disconnect O2 Sensor. A new Car Truck SUV O2 Sensor Eliminator is going to be easy to install and will make your Car Truck SUV better than ever. If you cut off your O2 sensors, you will not receive oxygen readings from your car and it will run on simulated values. However, this is easier to do with the rear O2 sensor than the front, as the upstream sensor needs values to control the air/fuel mixture. The cats really don't hurt performance much, the engines cam, timing, and fuel curve is all designed around them being present, and real world tests and studies have shown that the difference between running stock cats and no cats can be as little as a 5 hp increase at its peak, which would only be noticed at high RPM, if you can even tell. First find your signal wire and ground wire, cut them and splice them leaving a good inch of exposed wire for you to wire your component inline. EZ CEL Fix O2 Sensor Simulator eliminates either front or post sensor, thus you can remedy the annoying ECM codes. Why do you want to gut them? Yes. question about tracking numbers or wiring instructions for a tuner. Found behind the catalytic converter, this sensor measures the oxygen levels in the exhaust after the converter breaks down the unburned fuel.. Shipping was average a bit slower than in normalcy but this might be due to covid. Disconnect the connector and remove your post-cat O2 sensor. The catalytic converter's performance is measured by the secondary Oxygen sensor. EZ CEL Fix O2 Sensor Simulator eliminates either front or post sensor, thus you can remedy the annoying ECM codes. for Chevrolet Pickup Full Size 4.8L The O2 sensor as an input is used by the computer to keep the mixture as balanced as possible. . what you would need to do is to get an old defective front O2 sensor and plug it in at the rear. If your check engine light is on, one possible cause could be a faulty oxygen sensor. Step 6: Connect one end of the wire to the positive ( + ) side of the O2 sensor and the other end to the negative ( - ) side. 2: Made of Zinc Plated Steel which is durable and have high strength to use. (Papanui, New Zealand), reviewed for The O2 sensor is located in the exhaust system, typically before the catalytic converter. Driving without the O2 sensor is possible, but I wouldn't advise driving for long distances once the sensor has failed. It then relays this information to the ECU to adjust the fuel mixture. May or m. 6 of 10 people found this review helpful. Sep 12, 2004. "Faking out" an oxygen sensor refers to the process of bypassing the sensor so that the sensor does not relay the correct information to the system's computer. Ford Injection Pump Sprocket Locking Tool. Allow it to run until it reaches at least 200 degrees Fahrenheit. However, its easy to do. Slight flaw at installation instructions but a five star supplier overall with top of the line technical support. SKU:MA5043551.. , 18 2023. Sunday, 7:59 AM, I feel great about the purchase, I'll buy again, Reviewed by Atek (Waterloo, Canada), reviewed for It is also a quick and easy way to improve your fuel economy and avoid spending money on a new sensor. This simple fix could improve your trucks performance. If theres wear and tear, you want to replace the sensor. The default, limp-home fuel setting of an engine computer unit that receives no signal from the O2 sensor is an overly rich mixture. There is no problem with the O2 sensor, it is a critical piece of equipment for the engine to check the fuel mixture. Finally, reconnect the battery and start the engine to test the new O2 simulator. Are you concerned with remedying the ECM safe / limp mode was tripped by your exhaust modification? 90. . Step 5: Take a piece of wire and strip both ends. After this date you can buy our upgrades from local distributors and resellers or feel free to check out our $22.79: $0.00 + Sold in packs of 1 x 1: $22.79: Alternate: Quantity: I hope you now have the knowledge to determine whether or not to bypass the oxygen sensors in your car. This sensor monitors the amount of oxygen in the exhaust gases and reports back to the engine control module. Ford oxygen sensor simulator will allow you to drive without catalyst converter and still keep the warning light off. Save my name, email, and website in this browser for the next time I comment. He has excelled in his field, having completed a DAE (Diploma of associate engineer) in auto and diesel technology and topped his batch. In some cases, you may want to bypass the O2 sensor. magnumtuning.com has worked as a Wholesale Site since 2022. Is that what they have on the mustangs or do they have something else? We set up an efficient semi-automated Support Center available 24/7 which serves all your needs be it a This 02 Simulator is an advanced modification and can cause serious damage to you, your car or your loved ones if not done correctly. Often enough, the only sign of the problem at all is the service engine soon light being on. Free In-Store or Curbside Pick Up. The only problem will be that your vehicle will run sluggishly or roughly, or it will stall. Don't hesitate to get instant answer to your question. Exhaust gas is controlled through 2 to up to 4 exhaust o2 sensors. About Us - 14 of 16 people found this review helpful. Tuesday, 3:26 PM. Learn how your comment data is processed. Tuesday, 4:39 PM, Reviewed by jian (Singapore), reviewed for EZ CEL FIX Oxygen Sensor Simulator Choose the reliable solution that will definitely resolve your service light issue right away. Reviewed by ethan (Denmark, Maine, USA), reviewed for Strip the two oxygen heater wires and solder the resistors inline between the two wires, test this unit now by taping everything safely and putting your key to the ON position. EZ CEL FIX Oxygen Sensor Simulator In an area with little or no oxygen, such as a fire, the readings will be very low. Hence finding information technology tin exist challenging for you. Reviewed by rickie r. (Auburn, Australia), reviewed for Remember that depending on where you live, it can be illegal to install a dummy O2 sensor! Magnum upgrades are not imported from Far East and ship from our US 3PL shipper. Don't waste your time or money on the narrow band, they . I have a 96 Z71 and had removed the converters it did throw a code but in addition to throwing a code it also screwed up my fuel economy. Reconnect everything and turn on your ignition to test things out if all goes well, your check engine light should now be off! But can you and how do you bypass an oxygen sensor? 1987 John Deere Edition Ranger Dana 60 Sterling 10.25 Rear 5.0 HO/ZF/NP203/NP205 Leave the two black wires alone, they are part of . On the other hand our Car Truck SUV Oxygen sensor bypass easily installs on your specific Car Truck SUV. Yes, you can drive with a bypassed O2 sensor, but it is not recommended as it can affect the performance and emissions of your Ford F150. NTK created the modern O2 sensor in 1990, originally to be used in several Honda models. EZ CEL FIX Oxygen Sensor Simulator Bypassing the downstream oxygen sensor is the most common way to get rid of the P0420 code. If you have not cleared your OBDII codes by now, you should clear the codes using a reader or reset your ECU by pulling the positive terminal on your battery. You just have to swap the defective sensor with a dummy. https://amzn.to/3eR16hRIf you have an OBDII vehicle (1996 or later), and you have bad catalytic converters or don't have an. Solder the 1 mohm resistor inline between the signal and ground wires, and cap these two wires with the1F capacitor. Be careful not to damage or distort any of the threads during removal. If the computer is expecting an input from the O2 sensor but it just "see's" a phony one, it'll never get the mixture right - performance and mileage will suffer. If you experience any issues or problems, its best to seek the help of a professional mechanic. Reviewed by joseph p. (Hope Hull, Alabama, USA), reviewed for Worthy tech support though. "Faking out" an oxygen sensor refers to the process of bypassing the sensor so that the sensor does not relay the correct information to the system's computer.