Disconnecting O2 Sensor Plug

Resistance should be between 5 and 7 ohms. What the oxygen sensor assembly looks like. Removing the actual sensor from the exhaust pipe is no problem. There should be no disconnected wires once you're done, if there. The 'check engine' light is on, but it's been on for a while now, not necessarily because of me disconnecting the MAF sensor. The location of this sensor is on the backside of the engine (firewall) located by the cylinder head before the converter. Any O2 sensor that is defective obviously needs to be replaced. Tech: Replacing the O2 Sensor on 3rd Gen Toyotas. Un-clip and remove the wire harness connector. 2004 Cadillac CTS Oxygen Sensor Connector 6 Cyl 3. I'm doing a Stage 1 upgrade and recently I purchase Vance and Hines big shot staggered pipes the Vance and Hines breather kit and a Fuelpak for my model. This will ensure that no unnecessary strain is put on the wires while you are turning the sensor as well as make your job easier. ,make sure you ask for the one with the factory plug on. There isn't much room to work here so I found it was easier to unscrew the sensor first (which does twist the wires some) and then unclip and remove the sensor. Step 4 - Install new O2 sensor. Advanced sensor health monitoring, displays oxygen sensor health and reaction time when connected to DM-6 gauge. Note: When replacing an O2 sensor, the RAM memory in the PCM must be cleared. I found a link on oxygen sensor removal for Sienna 2000. See Figure 10. 10mm wrench is needed, and I cut the plastic tie holding the other wiring bundle to the bracket. When an O2 sensor failure occurs, a DTC or diagnostic trouble code is recorded in the ECU and a check engine light appears on the vehicle's dash. Locate the vehicle's oxygen sensor and confirm it with the help of the Corvette's owner's manual. Learning how to check an oxygen sensor (O2) will help you confirm a potential problem with the sensor in your vehicle before you spend time and money replacing a unit that might not even need a replacement in the first place. Step 3: Remove new O2 Sensor from box Step 4: Clean the area Step 5: Put sensor in, and apply anti-seize lube to bolts Step 6: Tighten nuts back on, and tighten the sensor *firm* but not to hard. GM TPS and Oil Pressure Switch With Guage Tri Way $13. If signal is faulty - ECU must be working in safe mode. Disconnect Sensor. Unscrew the faulty O2 sensor by utlizing the socket and thread chaser. Place the oxygen sensor socket on the sensor and break it loose. 2004 Cadillac CTS Oxygen Sensor Connector 6 Cyl 3. I own a 2006 Dyna Super glide. Disconnecting the O2 sensor causes the DME to run in open loop. upstreamexhaust oxygen sensor has to work flawlessly. 5, the pre cat, rear (firewall) O2 sensor. Testing the O2 Sensor. 6V (300-600mV). It helps to have various shapes and sizes since they can be used to engage the tab(s), potentially freeing up your other hand for pulling the connector apart. Disconnect the O2 sensor wire harness from the sensor. Cut off the old connector from the bad oxygen sensor, strip the wires and solder the wires to the new oxygen sensor. Disconnecting 02 sensor due to the check engine light is ON is not recommended and will cause you to loose and sacrifice lots of gas mileage. The situation is that right now i am running with the MAF disconnected completely (i disconnected it on purpose), and the car's running great (when it was connected it was awefull - stalling all the time). This code indicates that the Engine Control Module (ECM) has tested the oxygen sensor heater circuit and has found a problem with sensor 1 in bank 1. Start by clipping the new wiring harness in. This weld-in bung allows an O2 sensor to be screwed into your exhaust system. Remove the car battery or disconnect the negative terminal. The upstream sensor is the front sensor and it's not difficult to replaced, but you need to have the correct tool to remove it. Disconnect the sensor's wiring connector (be careful of its plastic tabs) and try to remove it, either with an open-end wrench or an O2 sensor socket. Disconnect O2 connector from wiring harness. The O2 sensor produces it's own voltage signal to the computer. This guide will show you how to replace one that's malfunctioning. The O2 senosr affectsAIR/FUEL MIXTURE so expet a loss in fuel mileage and a drop in power as well. Make sure it won't touch ground inadvertently. 1AFR with less than 100mS reaction time from rail to rail. Disconnect the HO2S. Order Oxygen Sensor Connector for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. The oxygen sensor in your vehicle controls the air to fuel ratio. Read more to find out more about these symptoms and how to correctly diagnose and replace a failing oxygen sensor. You can do this using a digital multimeter. There are two kinds of O2 sensors you can use to replace your old sensors. A threaded plug is included to cap off when not in use. Every vehicle has at least one O2 sensor but most have four. The 4-Wires O2 sensor also includes a heating element that keeps the sensor at proper operating temperature during all operating modes. Downstream O2 Sensor Connector Pinout. The car will still run as O2 sensors only give feedback to the PCM to allow for small corrections to the amount of fuel to deliver at any given time. O2 sensor faulty O2 sensor wiring damaged Factory OEM sensors are PLUGGED IN AFR value periodically indicates 19. This plug is used to disconnect the oxygen sensor from the exhaust and plug the oxygen sensor port. Locate the vehicle's oxygen sensor and confirm it with the help of the Corvette's owner's manual. Measure between pins 1 & 2 and it should be 11 to 16 Ω at 20C. This test checks whether the O2 sensor for bank 1 sensor 2 if fired or not. Only disconnect if you really must. Of course I have not drove or ran the car to long with the MAF sensor un-plug in fear of damaging some thing. It's required for custom exhaust systems, and is also useful for air/fuel ratio measurements when dyno testing. Step 4 - Install new O2 sensor. Trying to plug your laptop but the cord's too short to reach the electric socket? There's only one solution for that'search around your house for an extension cord. Oxygen Sensor Harness Products. Next remove the old oxygen sensor. Connect the ohmmeter test leads to connector terminals A and B of the sensor connector. You can do this using a digital multimeter. EMAIL SPECIALS! SIGN-UP AND SAVE. An OBD I car has no O2 sensors behind the cats - only the one @ the manifold. 4b) Disconnect the LH main oxygen sensor from the connector socket. The O2 sensor is what tells the main computer what the F/A (fuel to air) ratio is. Never use cleaning solvents of any kind on the O2 sensor, solvents can permanently contaminate the sensor element. Press the connector and pull it away to unplug the connector. 9 LSU Wideband Sensor Connector. The O2 senosr affectsAIR/FUEL MIXTURE so expet a loss in fuel mileage and a drop in power as well. Luckily, the just one bolt was sufficient to securely remount the shield. All cars made in 1996 and after are equipped with an OBDII interface. Thanks again, Tech. The O2 sensor looks like a white spark plug and has a green wire extending out of the top of it. All of the wiring instructions assume that two of the four wires from the original sensor will be the same color - indcating that those will be the heater wires. Use an oxygen sensor socket to reduce potential for damage. Unscrew the faulty O2 sensor by utlizing the socket and thread chaser. Thanks again, Tech. lbf) for sensor 2. The vehicle had come from another shop, which had already replaced the oxygen sensor. 05 on one cylinder. Be very careful not to damage the connector attaching clip. If I warm the car up, shut it off and disconnect the O2 sensor, it seems to run smoother when started back up. hammered it. They had a cheap and highly effective fix: they disconnected it. Accurate to 0. PitVisit O2 Sensor Bung Plugs Stainless Steel M18 x 1. Order Ford F150 Oxygen Sensor Connector online today. Unscrew the faulty O2 sensor by utlizing the socket and thread chaser. Audi A3/A4 B7: How to Replace Oxygen Sensor. I had both my front and rear sensors go bad. This article details how you can replace a failed O2 sensor. Safety Recall S89 -- Crankshaft Camshaft Sensor Wire Harness Page 7 12. The 'check engine' light is on, but it's been on for a while now, not necessarily because of me disconnecting the MAF sensor. However, the computer grounds the heater circuit for the O2 sensor. I'm doing a Stage 1 upgrade and recently I purchase Vance and Hines big shot staggered pipes the Vance and Hines breather kit and a Fuelpak for my model. 6V (300-600mV). 2004 Cadillac CTS Oxygen Sensor Connector 6 Cyl 3. Remove oxygen sensor connector from the bracket 2. Today's computerized engine control systems rely on inputs from a variety of sensors to regulate engine performance, emissions and other important functions. You may need a breaker bar for extra leverage. Step 3 - Thread the O2 socket onto the O2 sensor. Rebuilding the Stang and cannot locate a connection for this O2 Sensor. Clean (with shop air) the rear Oxygen Sensor connector and secure to the Overlay Harness Oxygen Sensor connector ensuring lock tab snaps into place. Should the calibration resistor value obtained in Step 2 differ from the specified value, remove the breakout leads (oxygen sensor and vehicle battery disconnected) and measure the resistance of the calibration resistor inside the oxygen sensor connector between terminals 6 and 2. If the resistance is not as specified, replace the sensor. Locate the vehicle's oxygen sensor and confirm it with the help of the Corvette's owner's manual. 9 LSU Wideband O2 Sensor ; Bosch 4. Be very careful not to damage the connector attaching clip. Use an oxygen sensor socket to reduce potential for damage. The connector on my truck was buried between the engine and the fire wall. Use a flat head screwdriver to remove the wiring harness connector that holds the oxygen sensor in place. Sorry for not making sure I sent the diag steps. If resistance is okay, go to step 20. Equip cars, trucks & SUVs with Oxygen Sensor Connector from AutoZone. Order Oxygen Sensor Connector for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. Ignition on, engine off. How to remove and install the rear passenger side O2 sensor for the Infiniti QX4 and Nissan Pathfinder R50. Take note of the oxygen sensor plugs on the top of the fuel rail cover. Oxygen sensors detect the amount of oxygen content in the exhaust stream. The O2 sensor looks like a white spark plug and has a green wire extending out of the top of it. Oxygen (O2) Sensor Choose for Me to Minimize Cost Related Parts Emission Repair Manual Fuel Injector Oxygen (O2) Sensor Connector Oxygen (O2) Sensor Socket / Wrench Oxygen (O2) Sensor Thread Repair. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. Disconnect the O2 sensor wire harness from the sensor. 6V (300-600mV). With the Sensor 1 plug disconnected, it is now a simple matter to use a 12mm box end wrench to remove the two bolts holding the sensor 1 and gasket on the exhaust system. com/Lasthumansvideos. Unplug the O2 sensor, ALL misfires go away completely. The connector must be secured after repair for proper oxygen sensor operation. Press the connector and pull it away to unplug the oxygen sensor. Check out this 1A Auto video to learn how to replace the oxygen sensor in your 04-08 Hyundai Elantra. It should be 0. Unscrew the O2 sensor from the exhaust pipe using an open ended wrench. 5 If you are installing a universal oxygen sensor, cut off the connector from the original sensor and splice the connector wires to the new oxygen sensor. 4L Pick Up). Order Oxygen Sensor Connector for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. GM LS O2 Oxygen Sensor Square Male 1-Keyway Wire Connector Plug Pigtail See more like this New Listing Wideband O2 Sensor Connector Kit for Bosch LSU 4. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. While the O2 Sensor itself is easy to get to by jacking up the car, disconnecting it from the wiring harness is a completely different story. or are they?. Then, disconnect the connector by pulling them apart. Disconnect Sensor. Measure the resistance between ground and the O2 Heater Control circuit in the O2 Sensor harness connector. Replacing a faulty O2 sensor is not a difficult project, even for a novice DIY'er, as long as you take the appropriate precautions to prevent accidentally burning yourself. Trying to plug your laptop but the cord's too short to reach the electric socket? There's only one solution for that'search around your house for an extension cord. You may need a breaker bar for extra leverage. Then reroute the wiring harness and connect the electrical connector. Next remove the old oxygen sensor. How to remove and install the rear passenger side O2 sensor for the Infiniti QX4 and Nissan Pathfinder R50. O2 sensor risers: Turn off the. First, you want to disconnect the O2 sensor connector and test the heater circuit for power and ground. Certain plastics will go brittle with age. To test, using an ohmmeter, disconnect the O2 sensor connector. Then, disconnect the connector by pulling them apart. Disconnect the electrical connection using a flathead screwdriver to push in the tab and pull the connector apart. Shop safely with us online or call 888-844-3393 and buy the quality part your car or truck needs today. If you are replacing an O2 sensor with a new one, disconnect the electrical plug from the vehicle harness, cut the wires off at the old O2 sensor, slip a 7/8" box wrench over the O2 sensor and. These Oxygen Sensors are based on the most modern technology, the ceramic multilayer technology, which distinguishes them from the conventional ones. Singles, pairs, & kits available in steel or stainless steel. Disconnecting or completely removing O2 senors will have the same effect as taking the entire fuel injection system out and slapping a carburetor on and guesstimating the adjustments on it. Disconnected wire harness connector. Harley O2 sensors Hi, I subscribed to your site earlier in the year and find your videos really helpful. 4 out of 5 stars 57. I did not get a CEL for a bad O2 sensor for weeks, but when I finally did, I replaced it, and the problem was solved. If signal is faulty - ECU must be working in safe mode. FREE Shipping on orders over $25 shipped by. This code indicates that the Engine Control Module (ECM) has tested the oxygen sensor heater circuit and has found a problem with sensor 1 in bank 1. Lots of people tried to fix it (the hesitation, not the O2 sensor) until we finally took it to a shop that knew it was the O2 sensor. The shop that called me also replaced the O 2 sensor. In case of a single oxygen sensor or dual pipe exhaust system fitted with two exhaust gas oxygen sensors only, the oxygen sensor simulator plugs to these ports. You can also use butt connectors. Then clear any engine fault codes using a MINI scan tool. Start by clipping the new wiring harness in. How to disconnect wire harness for front o2 sensor on nisssan frontier 2001 4 cyl 2 wheel drive. To disconnect the two halves, SQUEEZE the prong. 9 LSU Wideband O2 Sensor ; Bosch 4. O2 Sensor Eliminator instruction guide Many of today™s bikes now come standard with an oxygen sensor(s) in the exhaust system. Use the socket, if necessary, to finish unscrewing the sensor and remove from vehicle. The location of this sensor is on the backside of the engine (firewall) located by the cylinder head before the converter. There is another plug in front of it that you press the green tab and it releases it. Step 3: Remove new O2 Sensor from box Step 4: Clean the area Step 5: Put sensor in, and apply anti-seize lube to bolts Step 6: Tighten nuts back on, and tighten the sensor *firm* but not to hard. Start the car and run until engine is at normal operating temperature. Simply pinch the connectors on either side and pull them apart. In 1988 and 1989 the O2 sensor was a three wire unit; three wire O2 sensors used a PTC or Positive Temperature Coefficient heating element that keeps the sensor temperature between 923° F and 1292° F. Do not touch the sensor or the heat shield until the engine cools down. Press the connector and pull it away to unplug the connector. IMHO, O2 sensor can't cause damage. Has anyone of you disconnected the O2 sensor? Can you give me a step by step guide? The power commander map gives me two steps on doing this, but how? PowerCommander map says: "Unplug O2 sensor connector (R/H side, near clutch). The one I am having a difficult time removing is the main plug to the sensor (black head). Never trust the jack to hold up the vehicle. One is male; the other is female. Step 5 - Install new sensor. 99 Ships directly from the manufacturer on 08/06/19 Lowest Price Guarantee. This made it easier to disconnect the sensor connector from the bracket (use a small screwdriver to lift up the clip then slide off). The oxygen sensor in your vehicle controls the air to fuel ratio. Toyota Prius Oxygen Sensor Replacement costs between $232 and $605 on average. at the same time, do not try to force a heated o2 sensor into operation. The O2 sensor is an important part of maintaining the fuel efficiency of your car. To disconnect the two halves, SQUEEZE the prong. Ignition off! Disconnect the multi-pin connector from the ECU. Buy online, pick up in-store in 30 minutes. One of my bolts broke during removal. Cut off the old connector from the bad oxygen sensor, strip the wires and solder the wires to the new oxygen sensor. The onboard diagnostic (OBD) code P0135 is an oxygen sensor heater circuit malfunction in bank 1, sensor 1. Unscrew the O2 sensor from the exhaust pipe using an open ended wrench. With your engine at an ambient temperature, pop open your hood and disconnect the O2 sensor connected to the wiring harness near the firewall of your Jeep. Step 5 - Install new sensor. Step 7: Install new oxygen sensor. How to disconnect the O2 sensor bracket and plugs from a 2011 VW GTI. Oxygen Sensor Harness Products. Make sure it won't touch ground inadvertently. If so, use the adapter. Using only one hand, how do I disconnect the connector plug? How does the connector unplug? Is there a lever to depress?. EMAIL SPECIALS! SIGN-UP AND SAVE. Oxygen Sensor Weld Fittings (also known as weld bungs) and Plugs fit stock GM, Ford, Chrysler, and most import systems with 18mm x 1. Check out this 1A Auto video to learn how to replace the oxygen sensor in your 04-08 Hyundai Elantra. Now let focus on the other end. Toyota Camry 1997-2006: How to Test and Replace O2 Oxygen Sensor. The letter D will be embossed on the connector. Unplug the O2 sensor, ALL misfires go away completely. Especially on high mileage Audi. O2 sensor risers: Turn off the. Remove the front oxygen sensor female connector and bracket. Oxygen Sensor Weld Fittings (also known as weld bungs) and Plugs fit stock GM, Ford, Chrysler, and most import systems with 18mm x 1. I found a link on oxygen sensor removal for Sienna 2000. Damage is inevitable. Free Same Day Store Pickup. View attachment 89447 Sidenote. The triangular plug for the front sensor unplugged itself but I was not so lucky with the square plug for the rear sensor. Older Style Ford O2 Sensor. First Step - Unplug the O2 sensor from the wiring harness connector of the engine. How-To: Replace Downstream Oxygen Sensor Overview: Under certain conditions, the downstream oxygen sensor may short out and fail. The O2 sensor produces it's own voltage signal to the computer. The shield on a Mazda RX8 is shown in the photo with the mounting bolts identified. Dodge Ram 1500 Pickup oxygen sensor simulator will allow you to drive without catalyst and still keep the engine management warning light off. Replace the new sensor into exhaust 5. I needed every one of them. Note that the SST (Part No. hammered it. See Figure 10. How to place the oxygen sensor removal tool on your O2 sensor, demonstrated on removed sensor. It has no impact on engine performance. It turns out that most of the issues that set oxygen sensor codes are not a result of a bad sensor. The universal replacement may come with an adapter plug to mate the new sensor to the car's wiring harness. Unplug pin 11 on ECU large connector to disable FI light" Does this mode gives you any more power low-down. SMP's vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest. Disconnect the oxygen sensor wiring harness Plug in the. The sensor closest to the front of the car is for Bank 2 (cylinders 4, 5, 6, or the rear-most three cylinders) while the other is naturally for Bank 1 (cylinders 1, 2, 3). The one I am having a difficult time removing is the main plug to the sensor (black head). You will likely find one sensor in each manifold and down tube. Do not touch the sensor or the heat shield until the engine cools down. O2 Sensor Eliminator instruction guide Many of today™s bikes now come standard with an oxygen sensor(s) in the exhaust system. It should be 0. : 09392-2H100) is useful when removing the heated oxygen sensor. ALL THE PARTS YOUR CAR WILL EVER NEED. Shop safely with us online or call 888-844-3393 and buy the quality part your car or truck needs today. Chevrolet Silverado 2007-2013: How to Replace Oxygen Sensors. Harley O2 sensors Hi, I subscribed to your site earlier in the year and find your videos really helpful. Disconnecting the O2 sensor causes the DME to run in open loop. It's required for custom exhaust systems, and is also useful for air/fuel ratio measurements when dyno testing. Disconnect Sensor. 2 LSU Wideband O2 Sensor with Connector ; Bosch 4. With the Key On, Engine Off, this wire should have 10 to 12 Volts DC. Pull the metal tab up while pushing on the connector to release it from the metal mount. Using the oxygen sensor socket or the. Torque: 44 N. If this O2 sensor does not work or the wire is cut , the car will operate in a Limp in mode since the ECM has no feedback signal to adjust fuel flow and maintain the right fuel - air ratios. the rear o2 sensor makes sure that your cat is still doing it job of burning any on burn gas. - Safely remove the oxygen sensor from the exhaust when you use an oxygen sensor eliminator. Any O2 sensor that is defective obviously needs to be replaced. Disconnect the O2 sensor wire harness from the sensor. Using an oxygen sensor socket and a torque wrench, tighten the sensor to the torque listed in your service manual. Front Wheel Drive vehicles: Disconnect the O2 sensor wire harness electrical connectors (Figure 9). 5 Fitting Size 1 and get Free Shipping on Orders Over $99 at Summit Racing!. Dodge Ram 1500 Pickup oxygen sensor simulator will allow you to drive without catalyst and still keep the engine management warning light off. Is there a short 12" or so wire that connects to the wiring harness that drops down to the Drivers side O2 Sensor. Raining like crazy right now though. Release the two edge biting retainer clips securing the wire harness to the heat shield (Figure 8). Remove the oxygen sensor with the appropriate tool(s). Then clear any engine fault codes using a MINI scan tool. View attachment 89447 Sidenote. View attachment 89447 Sidenote. If it does not solve it, put the old O2 back on and save the new one. This test checks whether the O2 sensor for bank 1 sensor 2 if fired or not. There is one connector near the battery box that I cannot locate where it goes to also the O2 sensor connector. P2195/ air fuel ratio sensor stuck lean. You start by removing the passenger seat. Disconnect the single-wire signal lead of the O2 sensor from the green coax (you can leave the two-pin heater plug for the sensor connected; it has nothing to do with the signal circuit). the dealer is right it can damage your cat but most likly not, but if it the check engine light flashes you need to turn off the car and bring it to the shop becuse that means that it could damage tha cat. You will test the Oxygen sensor and not the sensor harness connector. Go ahead and disconnect this plug. Toyota Camry: How to Check and Replace O2 Oxygen Sensor. Disconnecting the O2 sensor causes the DME to run in open loop. The one I am having a difficult time removing is the main plug to the sensor (black head). Remove the car battery or disconnect the negative terminal. The dark green/orange wire should have 12 volts. The size of the sensor is 22mm. (Firmly pull on EACH wire at the connector) O2 sensor faulty. 5 Oxygen Wideband Sensor Bung Plug with 22mm Hex Head fits Bosch Type Lambda Sensor Universal Fit - Pack of 2. Make sure you disconnect to O2 sensor from the wiring harness before you start removing it. Remove oxygen sensor connector from the bracket 2. All cars made in 1996 and after are equipped with an OBDII interface. Order Ford F150 Oxygen Sensor Connector online today. O2 sensor eliminators. Then clear any engine fault codes using a MINI scan tool. This plug is used to disconnect the oxygen sensor from the exhaust and plug the oxygen sensor port. After plugging in the universal connector under the dash, we retrieved a code P0136 "O2 Sensor Circuit Malfunction (Sensor 2). Headers require both up- and downstream Oxygen Sensor elimination. You can do this using a digital multimeter. Damage is inevitable. Remove the old sensor using a socket and wrench 4. Read more to find out more about these symptoms and how to correctly diagnose and replace a failing oxygen sensor. The ECU is designed to read the Oxygen Sensor under certain conditions and temporarily change the air/fuel ratio. connector near the rear Oxygen sensor. You would normally expect the second oxygen sensor to show more gradual voltage changes compared to the first. We are in the middle of replacing the clutch on the 1997 Legacy 2. Release the two edge biting retainer clips securing the wire harness to the heat shield (Figure 8). Oxygen Sensor Connector with Oval Connector (S-938) by Standard®. The connector must be secured after repair for proper oxygen sensor operation. It turns out that most of the issues that set oxygen sensor codes are not a result of a bad sensor. Removing the actual sensor from the exhaust pipe is no problem. Using an oxygen sensor socket and a torque wrench, tighten the sensor to the torque listed in your service manual. It should be approximately 100 to 110 Ω (Fig 7). There is another plug in front of it that you press the green tab and it releases it. longyue 10kit 6 way Oxygen Sensor Connector Repair Kit for Ford Mustang GT/V6 11-17 longyue 10pcs 4 pin Toyota Oxygen O2 Sensor Extension Harness 12" $ 21. Nissan Sentra oxygen sensor problem upper sensors which you can purchase at Autozone for about 115. Compare your new oxygen sensor to the old one. Learning how to check an oxygen sensor (O2) will help you confirm a potential problem with the sensor in your vehicle before you spend time and money replacing a unit that might not even need a replacement in the first place. This specialized tool is a deep-well socket, not unlike a spark plug socket, with a cutout along one side to accommodate the sensor's wiring pigtail. Disconnect the O2 Sensor harness connector. It should be 0. If everything is working properly and you floor it there will not be any difference in power, with or w/out an O2 sensor. EZ CEL Fix oxygen sensor eliminator sends the ECM with mimicked, fluctuating voltage signal and tricks the Electronic Control Unit into thinking the emissions are within allowance. There are two kinds of O2 sensors you can use to replace your old sensors. If resistance is okay, go to step 20. Large Image | Extra-Large Image. Ok, Good your getting power to that side of the o2 sensor circuit. Oxygen Sensor Weld Fittings (also known as weld bungs) and Plugs fit stock GM, Ford, Chrysler, and most import systems with 18mm x 1. Disconnect Sensor. I had both my front and rear sensors go bad. Only disconnect if you really must. If you are reconnecting a sensor, clean it and apply some silicone spray on the mating. Remove the O2 sensor with the appropriate oxygen sensor removal and installation tool. Bung and cap/plug are both 100% stainless steel. Every vehicle has at least one O2 sensor but most have four. Disconnect the factory coil connector, and use the supplied scotchlok to crimp onto the factory grey/blue wire and connect the Bazzaz front coil connector. Watch out for shielding on the O2 sensor wire - if it's not colored as shown in the diagrams, you'll have to strip the metal shield away before attaching the butt connector. Compare your new oxygen sensor to the old one. If you are replacing an O2 sensor with a new one, disconnect the electrical plug from the vehicle harness, cut the wires off at the old O2 sensor, slip a 7/8" box wrench over the O2 sensor and. After plugging in the universal connector under the dash, we retrieved a code P0136 "O2 Sensor Circuit Malfunction (Sensor 2).