wmburns said: I have used the Bosch units in all of my Fords for years. I have a 2013 GT DD with stock intake. 316 RWHP & 335 RWTQ // 3,225 lbs with driver and fuel //. (S197 - 5th Gen - 5. Episode 87 Alley 55 Customs 5. Find the O2 sensor that needs to be removed. Reduced Fuel Efficiency. 4PCS Oxygen O2 Sensor for 1999-2000 2003-2004 Ford Expedition 5. I have an issue with all the sensors on the same circuit: all four O2 sensor heaters, EGR and PCV, see picture for codes. 1594 posts · Joined 2007. Catalyst, O2 and heated O2 were not ready. . Since the advent of electronic ignition and fuel injection, the. 45 . Driver's side front 02 sensor, bank 1/2 is the rear same side. 6RR's, TFS 6. Also, these were the results from the code reader: Results from 1st scan: KOEO 111 = "System PASS" Continous Memory 176 = "HEGO (HO2S) sensor fault/always lean" KOER 314 = "(Cars ONLY): Thermactor air system/fault during engine run self-test / left side" 311 = "Thermactor air system/fault during engine run self-test" Results from 2nd. LCA's,. Mustang. It should be part of the exhaust system, and it resembles a plug. Fuse F2. When these sensors malfunction, they can throw a check engine light, preventing you from passing your state inspection. Gently press on the tab of the sensor, then pull it out of the housing it is in. The hole needs to be plugged on the 2002 models maybe even some other years between 99-04. bank 1 = drivers side. *Please see product pages for any exceptions. This is especially useful if you are trying to manually override the air and fuel settings-also called "tuning" or if. Replacing 4 O4 sensors with no improvement is a big "parts changer" hit to the wallet. 2003 Mustang GT Intake & Exhaust: K&N FIPK CAI, Mac O/R H-Pipe, Custom Catback w/ Magnaflow Magnapack Mufflers. #10 · May 21, 2011. All Pick Up in Store Ship to Home Sort By: Compare. More Info. 6L. This sensor features a factory style connector for an easy plug and play installation and will replace LH or RH upstream & downstream sensors. 4. The O2 sensor is the only thing that draws any power, so it needs the 16 gauge wire. The rear are there just for emissions. stemar said: you only drill out 1 of the 2 foulers the 1/2" hole is so the o2 sensor will screw into. 05 mustang 02 sensor Bank 1 sensor 1Once you've got your exhaust assembled just the way you want it on your Mustang, there are some Exhaust Accessories you'll want to add. . Michigan Motorsports takes out the guesswork with this 2018-2020 Mustang GT O2 extension kit! The factory harness cannot reach the new O2 sensor location, therefore these plug and play extension harnesses are needed. Motorcraft Oxygen Sensor. Without question, Ford’s 5. Ideally you want the O2 sensor angled up slightly rather than parallel to the ground. stangPlus2Birds · #5 · Apr 22, 2005. org Forum. #1 · Mar 7, 2020. Jun 9, 2014. O2 Sensors; X-Pipes Resonator Delete; Catback Exhaust. This jobs just gets better and better. . alwayshi. Plug in the MIL eliminator to the corresponding connectors. Check out the pics in this thread: How to - o2 Non-fouler/Cheater - NewCelica. Well, o2 sensor aside, running straight pipes tends to shift the powerband higher into the rpm range. So if you have a manual trans and can’t ready the monitors, try 40 mph in sixth gear low rpm. Mustang gt sensors 1996 ford 2004 oxygen replace sensor mustangforums o2 step . A popular mod is to decat the exhaust or install an. If your Ford Mustang GT has wide-band exhaust o2 sensors, the ultimate solution is to wire up wideband type O2 sensor simulator to the exhaust gas oxygen sensor’s harness to mimic a properly functioning lambda probe. Oxygen Sensor. This NTK Performance Oxygen Sensor is designed to be a direct performance replacement for the Mustang. 62022 Ford Mustang Oxygen Sensor 2021 Ford Mustang Oxygen Sensor 2020 Ford Mustang Oxygen Sensor 2019 Ford Mustang Oxygen Sensor 2018 Ford Mustang. The right front is red/white and grey/light blue. So have to order two more sensors. 2004 Mustang Parts; 2003 Mustang Parts; 2002 Mustang Parts; 2001 Mustang Parts; 2000 Mustang Parts;. Check Details. It will also teach you how to test the oxygen sensor heater both upstream and downstre. The O2 sensor or sensors are called the after cat sensors. Ships from and sold by Trends Auto. My 04 mustang GT has a check engine light from the 02 sensor. If the problem only happens in the morning, then it sounds like a coldstart/warm-up related problem. 0L Coyote is one of the most impressive American V8 engines ever produced. 99. First Name. The common causes of the P2254 code include malfunctioning O2 sensors, faulty wiring or connectors, and a faulty PCM. 1 is located. What's the year and model. Drive Cycle Issues. A defective PCV system may also cause your oxygen sensor to go bad. Bladerunner said: Only use Ford Motorcraft 02 sensors on your mustang. Fitment Includes: 2005, 2006, 2007, 2008, 2009 Mustangs. Make it easy and simple ppl. $69. The upstream oxygen sensor tracks the amount of air in the engine to determine whether it is running in a rich or lean condition. 5. This O2 Oxygen Sensor fits all 2018-2023 Ford Mustang GT Models with Automatic Transmission. Symptoms of a bad O2 sensor: Sudden decrease in fuel mileage. I decide to clear the code, since the car is still running fine, and see if it comes back. 9. Fitment:. #11 · Nov 22, 2010. You post did not mention if you are looking for the wire colors from the sensor or the CAR harness. 8L v6Be the first to answer. T Shocks & Struts, J&M Caster Camber Plates, Steeda Bumpsteer Kit, UPR Elite LCA's & UCA's. When it detects a bad 02 it will program it out even if you reset it will go back to the keep alive mode. Generally, if we are talking about O2 sensors: Sensor 1 = Before Catalytic converter Front (Upstream O2 sensor) Sensor 2 = After Catalytic Converter Rear (Downstream O2 sensor) Some diesel engines have many exhaust temperature sensors. This does not necessarily mean that the vehicle is running lean (although it can, but usually. (Only the widebands are different. PoweredByAFR185 said: Yes, and no. -----2019 PP1/401A/A10 - 10. 0L gave the Mustang a 112-horsepower upgrade over the 300 horsepower 4. So Bank 1 Sensor 1 is the O2 sensor closest to the passenger side head (right around where the passenger side exhaust manifold. 1992 mustang gt twinturbo'd 1988 mustang gt bottlefed 2004 mach 1 collecting dust 1989. Next, insert a long chisel and aim for the honeycomb pattern inside the cat con. An OBD-II diagnostic scan could return code P0135 due to any of the following causes: High resistance in O2 heater element or O2 heater circuit wiring. Part #: 350-31002 Line: WLK. Gt350, gt350r. If the mixture drifts too far out of balance, a rich or lean code is stored and ECM/PCM’s fuel trim. K. 15. However, a new code came up. It comes with 3 different sized holes that you can restrict the o2 sensor. That is what the 1. Running rich as well even with a custom dyno tune. 050, and 1. And another thing, bank 1 is the drivers side and bank 2 is the passenger side I do believe. I was wondering if anyone knew which ones these were specifically. By following the green wire, you will be able to find the wiring. The O2 signal wiring can be 18 gauge. *Free Shipping on Orders Over $119* FREE 2 or 3-Day Delivery on Orders $119+ Details. Jun 9, 2014. Using the front jack point of the vehicle, jack up the car. Cory. Product Details. It indicates that there’s a problem with the heater circuit of engine bank 1’s downstream O2 sensor. Does your vehicle need an upstream or a downstream oxygen sensor? In this video, the experts at 1A Auto show you how to identify your O2 sensors to find out which part you need. grn 00 gt. We currently carry 22 Oxygen Sensor products to choose from for your 2006 Ford Mustang, and our inventory prices range from as little as $53. On Amazon:*PNEUMATIC PICKLE FORK SET: posts · Joined 2009. Leave your vehicle in the position for about 5 minutes and then reinsert the fuse. #5. Your 2195 code for the sensor reading rich can be to blame on one of these issues. We raised the o2 sensor maximum voltage to 1. 2007 - 2007 Ford Mustang. 4. 3. Tight tolerance ranges help minimize repeat repairs and false "Check Engine". 500 Volts, it knows it has injected too much fuel and. Both Sensor 1's are the front sensors (toward the engine) the bank specifies which side of the car (I think Bank 1 is driver's side and 2 is passenger's side) cfkboyz Discussion starter. It came up with nine codes with four of those repeated. Step 7. *Free Shipping on Orders Over $119* FREE 2 or 3-Day Delivery on Orders $119+ Details. Car runs great and tuned great. 4. Vehicle Fitment. I have emissions due in a week and 2 years ago i threw a really messed up tune on their from a manual just cause it had a cel/rear02 sensor. It's NORMAL for the rear O2 sensors to be off under certain conditions. Check Details. $17. So I have a diablosport hand tuner for my 04 mustang gt automatic but am finding it near impossible to get a custom tune for it. But you shouldn't need to replace the back O2 sensors if you have the O/R pipes. O2 sensor wiring diagram A couple of things. Ford Mustang Oxygen Sensor Replacement Cost Estimate A Ford Mustang Oxygen Sensor Replacement costs between $260 and $276 on average. Bank 1 means that the sensor measures the engine side with cylinder 1 and bank 2 means it measures the cylinders not containing cylinder #1. Applying heat shouldn't change the readings if you are bench testing, they're heated because they need a certain temp to become accurate at reading the amount of air/fuel. WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market. So, you'll be running open loop. Fuses F2. 113 Answers. Take note that antifreeze contamination may also cause your oxygen sensor to turn green due to the antifreeze dye. Pretty much any wideband that has a 1 volt analog output can be wired in place of the stock 02 sensor. 040 (which is pronounced, 40 thousandths) So 1. The oxygen sensor in your vehicle controls the air to fuel ratio. Motorcraft Mustang Oxygen Sensor (O2 Sensor) GT 4. 6L Mustang w/ Long Tube Headers) $599. ) The main power ground is from engine block to battery: it is. Exhaust Accessories, such as the MIL-eliminators, Ceramic Catalytic Converters, and the O2 Sensor, will give your Pony that show-winning quality, or just to make it look and sound that much better on the track or. 99 up to $102. On top of low prices, Advance Auto Parts offers 4 different trusted brands of Oxygen Sensor products for the 2014 Ford Mustang. 20 posts · Joined 2015. '82 Mustang GT T-top '87 Corvette '10 Mustang GT Convertible '17 F250 '17 Landrover Discovery Sport. Those are hte only pair of 02s that can be turned off by a tune/mil eliminators. These SVE O2 sensor extensions utilize heat. Sequential Tail Light Harness (05-09) #WEB-STS1M5HR. That’s where it’s going to do the test. #1. 5777 posts · Joined 2005. When we we're developing the MIL Eliminators I looked at the front and rear O2's on an NGS. #10 · May 21, 2011. This is especially useful if you are trying to manually override the air and fuel. 3565 posts · Joined 2008. April 19, 2021 by Jason. Try disconnecting the battery cable for 10 minutes or so that will wipe everything. 200+ bought in. The wiring harness that all four of the O2. 6L Tech O2 sensor question - 02 GT. Before and After Catalytic Converter Oxygen Sensors, 4-wire. Based on what is found in the exhaust gases (as measured by the oxygen sensors), the ECU is then able to adjust the necessary fuel. The rear O2 sensors are located after the catalytic converters on the mid-pipe. 3" pushrods, BBK shorties, Crane PS-91 coil, Walbro 155lph fuel pump, FRPP 24# injectors, Kirban AFPR, FRPP 65mm TB, Edelbrock Performer intake,. #1. Comprehensive Ford, Lincoln and Mercury vehicle-specific coverage. the fouler then you screw the drilled out fouler with the sensor into the non drilled fouler (stack or 2 foulers screwed together) then you put that assy into the exhaust pipe the small hole fouler. my check engine light has been on for about a month now and i have been neglecting to get it checked out. Put jack stands under the frame towards the front of the vehicle. Make it easy and simple ppl. The wiring harness that all four of the O2. Add to Cart. R5. codes. On V engines, there will be two, three or four sensors: 1-1, 2-1, 1-2 and on some with dual exhaust, 2-2. Your car’s PCM tests the oxygen sensors’ heater circuits for integrity. The service engine light is on, it reads P0153 Bank 2 Sensor 1 - O2 sensor Circuit Slow Response. GDSQDCR 12 Replies. 1 mm = approximately . # 485464152. From underneath, you can replace both O2 sensors without too much hassle at all. 6L Mustang Forums (1996-2004) 4. Sep 9, 2005. I recommend new O2 sensors only right after the car is tuned up, with no trouble codes, and running right. I have done a scan on it and everything look ok,but the cam sensor reads good and when you unplug the connector it still reads good does t I have a 2004 Mustang with a 3. MIL eliminators are used for the rear o2 sensors. O2 oxygen 8lOxygen mustang ford ebay Hatchback fits svt o2 oxygen convertible sensor mustang gt pair ford4pcs o2 oxygen sensors ford mustang 1999-2003 direct fit 3. The one in front of the. 700 with a stft reading of 8. Estimated Ship Date: Estimated Ship Date: BBK O2 Sensor Extension Harness Sets 16332. I am putting in a new O2 sensor (Bank 1 Sensor 1) tomorrow. ago. 02 GT throwing several codes, #8 fuse. Applying heat shouldn't change the readings if you are bench testing, they're heated because they need a certain temp to become accurate at reading the amount of air/fuel. 2003-2004 Mach 1 Mustang Parts; 2003-2004 SVT Cobra Mustang Parts;2934 posts · Joined 2011. That is what the 1. It has a *consumable* source that actually converts the. The oxygen sensors detect the amount of oxygen in the exhaust. Would have been better to replace just the front O2 sensors as the rears only monitor the cats. 7:1 air-fuel mixture, which can negatively impact your gas mileage. Bosch Exact Fit Oxygen Sensor 15717. how to replace o2 sensors on 05-14 mustangs (v6, gt, & gt500) In conclusion, the Mustang is equipped with four O2 sensors (two upstream and two downstream). '88 GT convertible, 5 speed, 3:08 gears, A9L Mass Air conversion. Replace the defective oxygen sensor on your 1994-04 Mustang with this Motorcraft replacement! A key element in Mustang air/fuel ratio monitoring, the oxygen sensors are located on the mid-pipe and monitors exhaust gases. 223 posts · Joined 2009. #2 · Feb 11, 2010. Oxygen Sensor. 0. Shortly after it threw code p2195 (Bank 1 Sensor 1 Stuck/lean) and started idling pretty rough at stops. Hi, I have a 2005 Mustang GT 4. $104. Part Number: DNP-234-4610. There are pre and post cat sensors and the post just measure to see if the cats are working. This oxygen sensor set helps to keep emissions in check, issuing alerts when it reaches dangerous levels. I learned this trick many years ago and it REALLY helps out when it comes to seized bolts / nuts. 2l. Price NTK Oxygen Sensor 22500 Part # 22500 SKU # 408616 1-Year Warranty Check if this fits your 2004 Ford Mustang $5699 Free In-Store Pick Up SELECT STORE Home Delivery Standard Delivery Estimated Delivery Oct. Legacy correction [INNOVATIVE TECHNOLOGY] - Every Bosch Oxygen Sensor benefits from the technological and manufacturing experience gained from decades of production since first inventing the Oxygen Sensor in the late 1960's, ensuring long-lasting, superior performancePotential causes of a P2195 code include: -Oxygen (O2) or A/F ratio sensor or sensor heater malfunction. #1 · May 28, 2009. This unit eliminates 5 or 6-wire wideband oxygen sensors only. This guide will help provide you with the location and information to allow you to change a faulty oxygen sensor. Do you need to Replace the oxygen sensor on your Ford Mustang (1994 - 2004) but don't know where to start? This video. Leaking or contaminated fuel injectors. Replace the defective oxygen sensor on your 1994-04 Mustang with this Motorcraft replacement! A key element in Mustang air/fuel ratio monitoring, the oxygen sensors are located on the mid-pipe and monitors exhaust gases. For example IF an "application" uses a wide band O2 sensor in the front O2 sensor and a narrow band O2 in after cats THEN swapping the O2 sensors would most certainly cause a problem. 6L Mustang GT are important for monitoring and controlling. I have a 1997 Cobra with an off road H pipe and am having the following issues. The first digit in the number is the Bank ID: 1 = bank 1, 2 = bank 2. Lund tuned. This Ford Mustang GT O2 Sensor Simulator does not work on 5 or 6-wire wideband systems. 285 posts · Joined 2014. If your wires are the same as mine, I think it goes as follows: For the O2 heater: RD/YE wire is 12 volts. . 50+ bought in past month. It then relays this information to the ECU to adjust the fuel mixture accordingly. Even with the stock exhaust system sometimes. Ford Mustang (1994 - 2004) - Replace the oxygen sensor. . Description. Mustang. Upstream and Downstream are compatible with the 1999-2010 Ford Mustang GT, Ford Mustang V6; 2007-2010 Ford Mustang GT500. New Edge Mustang GT 1999-2004, 1999-2002 NA Cobra or 2003-2004 Mach1 owners– Get your car truly ‘RACE-READY’ with MS3Pro Plug & Play! This ECU installs in less than an hour, arrives out-of-the-box ready for up to 44lbs boost and is CAN enabled for seamless control of other MegaSquirt or third party devices. PRICE: 55. Ford Mustang GT 1996-2004: How to Replace Oxygen Sensors. still not ready. Connector Gender: Female. / 3,835 lbs. If you're looking to replace both sensors then you'll need a meter that's able to take input from and send an analog signal out for both sensors. It will crank but won't start. #14. 6859 posts · Joined 2010. On V engines, there will be two, three or four sensors: 1-1, 2-1, 1-2 and on some with dual exhaust, 2-2. The on-board diagnostic (OBD) system was developed for manufacturers to monitor emission control devices on their vehicles. 6L Tech Status Not open for further replies. Off-road parts from BBK. 6L and the guy I got it from put on long tube headers and Borla exhaust. Which would make bank 2 sensor 1 on the driver side. A problem with the oxygen sensors can reduce fuel economy and damage the catalytic converters. An imbalance is indicated when multiple samples of the accumulated voltage are consistently higher than the desired value. 0L Passenger Side Oxygen Sensor. The code is triggered when there is an issue with the response time from the oxygen (O2) sensor when switching voltage levels. Fits 1996-2004 Mustang Front O2 Sensor This pigtail will also work on rear 4 wire sensor, the locating tabs would have to be cut off the O2 sensor. The sensor has a 2-wire connector on top of it, rather large for a temp sensor. (S197 - 5th Gen - 5. FREE 2 or 3-Day Delivery on Orders $119+ Details. Mustang oxygen sensors can fail or become damaged over time causing your Malfunction Indicator Light (MIL) to turn on. Separate out the blue and one of the black wires. 99 $ 619. If it finds an issue in the heater circuit for the engine bank 1’s downstream oxygen sensor, it sets code P0141. Now I got a new code the other day, P0420 & P0430. Thread Size:. When I sodered in my MIL Eliminators in my rear O2 sensors last night, I took both sensors out at the same time. YE/LB wire goes to the PCM. . FREE 2 or 3-Day Delivery on. Oxygen sensors are a vital component of your emissions system. Rough Idle. *Free Shipping on Orders Over $119*. After running some errands in the Cobra for a few hours with the car running normally out of no where as I tried to accelerate when the light turned green the car acted as if it was not firing right ( Hesitating, Sputtering). Now just reinstall your new sensors and reconnect the pigtails. remember you will only get 02 signal voltage (under 1v) the closer to 1v the more air (0. 2017 Mustang GT Premium - Grabber Blue, Manual, Performance Pack, 401A, Premier Trim - Sold 2021 Mustang Mach 1 Premium Chassis #5059 - Fighter Jet Gray, TREMEC, 700A, Elite Package, Appearance Package, Handling Package, Navigation, Kook's Green Catted Headers, GT500 Borla ATAK Catback, Wengerd Performance. Old o2 would measure voltage only. 500 Volts. Direct fit oxygen sensor. 99. Update! The sensor location I described yesterday was incorrect, on my 90 GT that is the temp sensor for the guage pod. They are next to the blinker fluid reservoir. Disconnect the negative ( - ) battery terminal. Add to quote; Share Only show this user. In addition to monitoring smog equipment, manufacturers began to use the on-board diagnostic system to monitor various aspects of the engine,. #LRS-9698XSHM. 25 would be about . Feb 7, 2011. If the O 2 sensor heater circuit’s negative wire goes directly to ground, look for a short-to-power problem. UO2SPC11 circuit open. You just reach up and unplug them. Excessive fuel pressure. Add to Cart. 7L, Jeep Wrangler, Jeep Liberty, Jeep Grand Cherokee. Finally got my Speed of Sound gauge pod installed, water temp gauge and Raptor shift light hooked up. Ford oxygen sensor simulator will allow you to drive without cat and still keep the SES light off. 2004 Mustang Parts; 2003 Mustang Parts; 2002 Mustang Parts; 2001 Mustang Parts; 2000 Mustang Parts. The voltage reading from a normal oxygen sensor should look something like a heartbeat, whereas with P2197 the voltage looks like a low. 0L) 1996 - 2004 Mustang GT (SN95 - 4th Gen - 4. Early Black Friday Deals Use Code: THANKS20 11/20-11/23. 6L DY1401 | (05-10) 1979-1993 Ford Mustang 1994-2004 Ford Mustang 2005-2009 Ford Mustang 2010-2014 Ford Mustang 2015-2023 Ford Mustang 2024 Ford. Kevin . Turn off that annoying check engine light! These BBK MIL eliminators are for use with all high-flow, off-road H and X pipes. spec connectors, wire lengths and internal resistance. 6. 2555 posts · Joined 2006. 5. 5 PSI (tuned down) Comp Cams XE270-AH. Description: Motorcraft Parts are the only parts designed and built to the specific standards of Ford Motor Company and are the only parts. I did put in new bungs and reinstalled the sensors. 8 posts · Joined 2010. read more. 500 Volts and 1 Volt, is considered as the air/fuel mixture being Rich. Well a few days ago I decided to. 1 mm = approximately . 45 volts as a lean exhaust. A popular modification is to decat the. i have a 95 mustang gt with 5. Unfortunately the code is still being thrown. Other symptoms of a failing oxygen sensor include: Rough or erratic idle. The first sensor I replaced it with was made. Should I just replace the O2 sensors and would I need to get new MILs also. This makes it possible for the car to monitor the exhaust more accurately and make the necessary adjustments to ensure the engine is running as efficiently as possible. 1->0. The most common is a vacuum leak in the intake manifold on bank 2, in the case of this code. Hand-picked by experts! Pay later or over time with Affirm. On Amazon:*PNEUMATIC PICKLE FORK SET: posts · Joined 2009. 49. #2. 24 in. Now you need to grab your two new oxygen. 02 Oxygen Sensor Extender 90 Degree Angle O2 for Downpipe M18 x 1 5 Spacer O2 | eBay. the power ground for the starter & alternator. They're literally designed for what you want to do. Once you have found the O2 sensors, you will need to follow the green wire that is right on top of each of them. 2009 Challenger R/T, manual trans. They detect the amount of oxygen in the exhaust system and rely on built-in heating elements to reach operating temperatures. The O2 sensor is so much further away from the engine than stock that it's taking a lot longer than normal to warm. The downstream O2 sensor makes sure the catalytic converter is working. 4. in this thread in. All O2 sensors WORK the same. That is what is known as the pitch. Do not use an impact wrench to remove an O2 sensor, as you will most likely strip the threads in the bung. Code P0155 is part of a family of codes, listed as follows: P0141 – Sensor Heater Circuit Bank 1 Sensor 2; P0161 – Sensor Heater Circuit Bank 2 Sensor 2; P0135 – O2 Sensor Heater Circuit Bank 1 Sensor 1; P0155 – O2 Heater Circuit Bank 2, Sensor 1; For more information on the. Xcal2, JLTII, UDP, ProKit, Dspecs, Bump Steer kit, SS brake hoses, Strut Tower Brace, UCA, Adj. Nov 2004 Location. The car actually uses the front 02 sensors for calculating air/fuel. MACH 1 MUSTANG, SHELBY GT 500, COBRA R, BULLITT MUSTANG, SN95, S197,. Not Yet Reviewed. 6L) 2011-2014 V6 Mustang Mustang News & General Discussions 2005 - 2010 Mustang GT (S197 - 5th Gen - 4. These 18" BBK O2 extensions fix the issue by plugging into your existing wiring plug and your O2 sensor wiring to complete the connection. Buy Mil Eliminators here: Step 4: Disconnect the O2 Sensor. Hand-picked by experts! Pay later or over time with Affirm. 7335 posts · Joined 2009. After reading a bunch of forms I was pretty convinced the rough. G. $69. 5. Thread starter Sicarius428; Start date Oct 27, 2009; S. One in front of the converter and one after the converter. 2005 Mustang GT. Description. Since oxygen sensor are not cheap and sometimes the PCM (Powertrain Control Module = Fuel Injection Computer) accuses them of being bad when they aren't, testing them (to make sure they're really bad) is a good idea and this article will help you. It supplies the Electronic Control Module with mimic, fluctuating voltage signal and spoofs the ECU into thinking the emission is normal. For the O2 sensor: RD/BK wire goes to the PCM. Engine missing is usually caused when a bad oxygen sensor affects the air/fuel mixture and engine combustion. Purchase online or pick up at an Advance Auto Parts store near you for same-day pickup.