Dodge p0138

23 years of experience. The code P0138 is on for two possible different situations. Either the oxygen sensor has shorted out on the exhaust system or the wiring from the battery to the sensor has a short or break in it. Check the oxygen sensor and see if the wiring is plugged in and if there is any broken wires at or near the sensor. If there ...

Dodge p0138. Dodge Durango 1st Generation 1998-2003. Durango Discussions 1998-03 P0138. 2848 Views 6 Replies 4 ... Only show this user. My D lit up the check engine light and it threw a code P0138 which means: O2 Sensor Circuit High Voltage (Bank 1 Sensor 2) - Oxygen sensor input voltage maintained above normal operating range. My guess is I …

How to fix a P0138 engine Code: O2 Sensor Circuit High Voltage Bank-1 Sensor-2The computer (ECM/PCM) uses the upstream O2 Sensor-1 to modify the air/fuel mix...

Check Engine Code P0138. Jump to Latest Follow. 3K views 2 replies 3 participants last post by FSTDANGO3 Jan 16, 2012. GolsonMolson Discussion starter. 447 posts · Joined 2009. #1 · Jan 15, 2012. P0138 = 1/2 O2s shorted to voltage.P0132 is a common OBDII code that occurs in many vehicles, including the Dodge Journey. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more. The air fuel sensor stays in rich biased mode for too long. There are also some less likely problems that can cause P0132.P0138 High voltage is too rich or not enough O2 and can be caused by TPS, Map Censor, Canistor purge with too much fuel in it, Burning oil, leaking injectors, or too high presure in fuel rail. yvrdakota. Dodge Dakota. JOIN HERE. 11/27/2008.Dodge these totally avoidable charges. By clicking "TRY IT", I agree to receive newsletters and promotions from Money and its partners. I agree to Money's Terms of Use and Privacy ...P0137 is the OBD-II generic code indicating the O2 sensor for bank 1 sensor 2 is failing to increase the voltage output above .21 volts indicating excessive oxygen in the exhaust. This code occurs when the engine control module (ECM) sees the voltage of the O2 sensor for bank 1 sensor 2 below .21 volts when the ECM has commanded the fuel to a ...purplepistil Discussion starter. 69 posts · Joined 2007. #5 · Dec 29, 2007. yeah thats what i thought 2. i get the cel with sensor off, heater off. this morning i changed the tune to rear o2 heater ON and sensor OFF. still get the codes 0138 &0158. thanx for the help. Danko sealed shaker-Franks milled SS heads-SPARROW-JBA shorties-Flowmaster ...P0138, P1684, U0155, C2206. 2005 Dakota quad cab. Bought yesterday, trying to see what codes are so I'll know if it's - Answered by a verified Dodge Mechanic. We use cookies to give you the best possible experience on our website. ... Dodge 2001 Dakota Quad cab 4x4 4.7 Just checked the codes because the check engine light just …

If the oxygen in the exhaust gas increases, the air-fuel ratio becomes Lean. The ECM interprets Lean when the HO2S voltage is below 0.45 V. If the oxygen in the exhaust gas decreases, the air-fuel ratio becomes Rich. The ECM interprets Rich when the HO2S voltage is above 0.45 V. P0138 Nissan Code - HO2S12 Circuit High Voltage.Feb 10, 2006 · Check engine code P0138. I have a check engine light that shows the P0138 code, Could someone shed some light, it's supposed to mean the following: P0138 (M) 1/2 O2 Sensor Shorted To Voltage Oxygen sensor input voltage maintained above normal operating range. Oct 31, 2018 · Ram Year. 2006. Engine. Hemi 5.7. P0138 is a Bank 1, Sensor 2 (post catalytic) O2 Oxygen Sensor Circuit High. It sounds to me like that O2 sensor needs to be replaced based on what you're telling us and the code that you have given. Your post-cat O2 sensor won't follow your pre-cat O2 sensor, it's there to tell you that your catalytic ... Vehicle: 2005 Dodge Ram 1500 4.7l 4x4. 05 Ram 1500 Engine codes P0138, P0138PD, P0420. Post by Dodge05 » Sat Mar 31, 2018 7:35 pm. ... P0138-1/2 O2 SENSOR SHORTED TO VOLTAGE P0138PD - PD indicates the code is also pending - it has failed the test and will set again.The location of oxygen sensor on a 2001 Dodge Ram 2500 with a description of upstream downstream and what it means. 5.9 litre P0132 bank 1/ sensor 2, P0138 ...Came back code P0138. Something about bank 1, O2 sensor. The sensor after the cat converter. I didn't do anything to the truck. Drove it to work today. this afternoon when I got in it, the light didn't come back on. Drove it to town tonight. Light still off. What's up? Loose connection? It's a 1997 Dodge Ram 4X4 318 4 speed auto 150,000 miles

These codes, po 138 bank 1 sensor 2 shorted to voltage and code po158 means bank 2 sensor two shorted to voltage. these are the two rear oxygen sensors in the exhaust system. there two up frt and two in the rear, check the wiring on the two rear sensors, make sure that the wiring is not cut or stuck between metal. if the wiring is good then ...2005 Dodge Grand Caravan 3.8l. P0138, Using scantool live data, s. Using scan tool, sensor 1 is reading between .2-.74, - Answered by a verified Dodge MechanicCODE P0037, P0038, P0136, P0137, P0138, P0139, P0140, P0141 DODGE DART, CHRYSLER 200, JEEP CHEROKEE COMPASS RENEGADE, RAM PROMASTER CITY, FIAT 500X, FIAT TOR...DTC P0138 Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 1 Sensor 2 (B1S2) For reference, Bank 1 and Bank 2 refer to which bank of cylinders, left or right if it’s a V configuration, Bank 1 containing Cylinder 1. Inline engines may be divided, Bank 1 being Cylinder 1 & 2 or 1 – 3. Sensor 1 or Sensor 2 refers to the sensor’s ...

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31 Mar 2023 ... P0138 O2 Sensor Circuit High Voltage (Bank 1, Sensor 2 | symptoms | Causes | location | solutions #P0138 #o2sensor #malfunction #circuit ...Meaning. Your vehicle Engine Control Module ( ECM) stores a P0138 when it detects the O2 sensor for Bank 1, Sensor 2 fails a voltage test. The voltage must register below 1.2 volts …02/03/2023. Updated: 09/03/2023. The P0138 is an OBD-II trouble code that stands for “02 Sensor Circuit High Voltage (Bank 1, Sensor 2)” and is triggered when your vehicle’s primary computer, also known as the powertrain control module (PCM), detects that the voltage signal from the rear O2 sensor is too high for a given period.Causes: A code P0138 may mean that one or more of the following has happened: Faulty O2 sensor. Short to battery voltage in O2 sensor signal circuit. High fuel pressure (not as likely) Possible Solutions, here are some potential solutions: Replace O2 sensor. Repair short to battery voltage in o2 sensor signal circuit.

Fault P0138 may indicate a failure of the oxygen sensor, so the ECM cannot adjust the air-fuel mixture ratio properly. This may result in increased fuel consumption, as well as problems with the vehicle’s engine and exhaust system performance. ... Dodge (Caravan, Dakota, Neon, RAM, Stratus) Ford (Escape, Explorer, Focus, Mondeo) Honda (Accord ...Feb 16, 2020 · Someone suggested buying the Mopar 02 sensor instead of an off-brand, so I got one and installed it. The P0138 code came back almost immediately. Same location, bank 1 sensor 2. So, bank 1 should be driver's side exhaust, however the down pipe connects to the right side down pipe and runs into one cat. P0132 is a common OBDII code that occurs in many vehicles, including the Dodge Ram. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more. The air fuel sensor stays in rich biased mode for too long. There are also some less likely problems that can.Informações sobre o código do erro: P0138. Descrição do erro: Circuito de aquecimento da sonda lâmbda 2, bloco 1 - alta tensão. O que causa o código de erro P0138? A possível causa é Curto-circuito ao positivo nos cabos, circuito de aquecimento da sonda lâmbda, módulo de controle do motor. Conheça a tabela completa de codigo de ...The heating elements inside each HO2S heat the sensor to bring the sensor up to operating conditions faster. This allows the system to enter Closed Loop earlier and the ECM to calculate the air-to-fuel ratio sooner. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the HO2S voltage is greater than 1, 050 mV. P0138 …M. moosewilsn Discussion starter. 5 posts · Joined 2005. #1 · Sep 25, 2005. The diagnostic codes from my '98 5.2 Ram 1500 taken with my OBD II are: P0141 - Heater Circuit Malfunction Bank 1, Sensor 2. and. P0138 - Sensor Circuit High Volts Bank 1, Sensor 2.Dodge Durango 1st Generation 1998-2003. Durango Discussions 1998-03 ... P0138. 2848 Views 6 Replies 4 Participants Last post by Siggi Gunda, Oct 25, 2009. Siggi GundaI changed spark plug #1 and spark plug wire #1 to see if it made a difference. It didn’t – the check engine light starting blinking a few miles later. I checked the codes again and had P0301 P0300 & P2097. I changed out the ignition coil and everything started working again, and the codes went away. 3.8L V6 with about 178000 miles on it.A triggered P0138 code means the Engine Control Module (ECM) has detected a high voltage signal (over 999 mV) from the downstream sensor for more than 10 seconds. A …Remember how embarrassed Apple was when a Senate investigation revealed a disproportionate share of its profits accrued to an Irish subsidiary with no employees? Me neither. Rememb...

Dec 15, 2010 · A code P0138 may mean that one or more of the following has happened: -Faulty O2 sensor. -Short to battery voltage in O2 sensor signal circuit. -High fuel pressure (not as likely) New: 2005 Dodge Ram 1500 QCSB 4x4 Hemi Laramie Bright Silver. Flowmaster SI/DO 40 Series.

Meaning. Your vehicle Engine Control Module ( ECM) stores a P0138 when it detects the O2 sensor for Bank 1, Sensor 2 fails a voltage test. The voltage must register below 1.2 volts for over 10 seconds and indicates there is insufficient oxygen in the exhaust stream. In short, your oxygen sensor is doing its job and your engine’s fuel/oxygen ...Dodge Ram pickup tricks come equipped from the factory with a stereo system that includes rear speakers mounted in the rear side trim panels. If you want to install new speakers in...P0138 engine code came on my 2005 grand caravan 3.8l. Changed out the rear o2 sensor with bosch direct fit on the cat - Answered by a verified Dodge Mechanic. We use cookies to give you the best possible experience on our website. ... 2005 Dodge Grand Caravan 3.8l. P0138, ...Oct 25, 2020 · =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0138 Saving Repair Parts... P0138 is Bank 1 (Driver side), Sensor 2 (downstream of the catalytic converter). I like Bosch & NGK, or whatever is cheaper from the Rock. OEM always seem to be more pricey, and often times they are Bosch sensors, but with a OEM PN. Only two defining forces have ever offered to die for you, Jesus Christ and the American Soldier.When retrieving Dodge check engine light codes with an OBD II scan tool, proceed as follows: 1. Connect scan tool to the 16-pin data link connector (DLC) located near the steering column. ... P0138-o2 Sensor 1/2 Circuit High P0139-o2 Sensor 1/2 Slow Response P013a-o2 Sensor 1/2 Slow Response - Rich To Lean P013c-o2 Sensor 2/2 …When an OBD-II equipped vehicle has a stored P013A code, it means that the powertrain control module (PCM) has detected a slow response time from the downstream (or post catalytic converter) oxygen (O2) sensor or circuit for engine bank one. Bank 1 specifies the bank of the engine which contains the number one cylinder.Cam sensor 2 is on the back of the engine intake manifold side. Multiple codes are usually a wire or connector short or open. -Case. 16 Dart SXT 2.0 TorRed stock /16 Dart SE 2.0 Laser Blue Pearl stock / 98 Neon Sport Coupe DOHC Alpine Green ATX stock / 95 NYG ACR Coupe (restored) / 18 Ram 1500 3.6 4x4 Std Cab Delmonico Red …Manufacturers constantly strive to build their vehicles to meet tougher emission standards each year. This can be a nightmare when trying to diagnose a check...

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How to fix a P0138 engine Code: O2 Sensor Circuit High Voltage Bank-1 Sensor-2The computer (ECM/PCM) uses the upstream O2 Sensor-1 to modify the air/fuel mix...Jun 23, 2021 · Is your vehicle triggering a P0138 trouble code on your OBD-II scanner? If so, read on to find out what this code means, what the symptoms and possible causes are, and how you can diagnose and fix the issue. Dodge Sprinter P0138 Causes. Here are the most common issues that cause the P0138 code in the Dodge Sprinter. They are presented in order (somewhat) of most to least likely to cause the problem. Bad Oxygen Sensor– The O2 sensor itself is one of the most likely reasons that P0138 is triggering your service engine soon light. Although it is …The Dodge Stratus battery compartment is located beneath the engine compartment in the left front fender next to the wheel well. The remote terminals for the battery are accessible...This allows the system to enter Closed Loop earlier and the ECM to calculate the air-to-fuel ratio sooner. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the HO2S voltage is greater than 1, 050 mV. P0138 Chevrolet Code - HO2S Circuit High Voltage Bank 1 Sensor 2.Looking for a Dodge dealer near you? The first place to start is by identifying the main features you are looking for in a Dodge car dealership. The three main factors to consider ...This allows the system to enter Closed Loop earlier and the ECM to calculate the air-to-fuel ratio sooner. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the HO2S voltage is greater than 1, 050 mV. P0138 Chevrolet Code - HO2S Circuit High Voltage Bank 1 Sensor 2. Diagnostic Trouble Code P0138 (DTC P0138) is defined as “O2 Sensor Circuit High Voltage (Bank 1 Sensor 2).”. Oxygen sensor 2 is a downstream oxygen sensor or the secondary heated oxygen sensor (HO2S 2) on Bank #1. It measures the air-fuel mixture or the oxygen storage capacity of the catalytic converter and produces a relevant output signal ... Check Engine Code P0138. Jump to Latest Follow. 3K views 2 replies 3 participants last post by FSTDANGO3 Jan 16, 2012. GolsonMolson Discussion starter. 447 posts · Joined 2009. #1 · Jan 15, 2012. P0138 = 1/2 O2s shorted to voltage. ….

RE: P0138 code on 2002 Dodge Intrepid. It must have been a one-time out of tolerance fault. After around 40 engine cycles, it the malfunction hasn't reoccured, the light will go out and the code will erase (that is unless you reset the code prior). Anyway, if it tripped once, it will probally trip again in the future.P0138 Code — What it means and how to fix it Learn what a P0138 code means, the most common causes, and the diagnostic procedure. A P0138 Code is a generic trouble code defined as an O2 Sensor Circuit High Voltage (Bank 1 Sensor 2). Bank 1 is the part of the engine that houses cylinder number one. Sensor 2 is located after the catalytic ...P0138 is a common OBDII code that occurs in many vehicles, including the Dodge Dakota. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more. Voltage to the sensor is to high (wiring problem, think short) Bad O2 sensor itself. There are also some less likely problems that can cause P0138.Feb 16, 2020 · Someone suggested buying the Mopar 02 sensor instead of an off-brand, so I got one and installed it. The P0138 code came back almost immediately. Same location, bank 1 sensor 2. So, bank 1 should be driver's side exhaust, however the down pipe connects to the right side down pipe and runs into one cat. Code P0140 indicates that there’s problem with the post-catalytic monitoring oxygen sensor. Found behind the catalytic converter, this sensor measures the oxygen levels in the exhaust after the converter breaks down the unburned fuel.. If the catalytic converter is in good condition, this oxygen sensor takes more time to change its voltage …Jan 1, 2011 · The Oxygen Sensors (O2S) are attached to, and protrude into the vehicle exhaust system. Depending on the. engine or emission package, the vehicle may use a total of either 2 or 4 sensors. 1/2). With this emission package, the upstream sensor (1/1) is located just before the main catalytic convertor. The. P0138 is a common OBDII code that occurs in many vehicles, including the Dodge Charger. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more. Voltage to the sensor is to high (wiring problem, think short) Bad O2 sensor itself. There are also some less likely problems that can cause P0138.In 1955, Dodge's Custom Royal Lancer convertible turned heads. See pictures and learn the history of the 1955 Dodge Custom Royal Lancer convertible. Advertisement Dodge burst into ... Dodge p0138, 23 years of experience. The code P0138 is on for two possible different situations. Either the oxygen sensor has shorted out on the exhaust system or the wiring from the battery to the sensor has a short or break in it. Check the oxygen sensor and see if the wiring is plugged in and if there is any broken wires at or near the sensor. If there ..., The P0138 DTC is a generic trouble code that says the oxygen sensor circuit (Bank 1, Sensor 2) is exhibiting higher voltage than normal. The Powertrain Control Module (PCM) detects that the voltage coming from the sensor is higher than what the manufacturer specs illustrate., To diagnose the P0138 Toyota code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour., If you want to verify that your vehicle needs a new o2 sensor before spending money on a new part, here is a few things you can check to be sure a new sensor..., =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0138 Saving Repair Parts..., The dreaded Code P0138. Two days after I bought my 2019 T/A.. I punched it as some idiot seemed to be lost and kept changing lanes in front of me and hitting they're brakes on the freeway deciding what to do. Well about a few minutes later the dreaded check engine light popped on. So right away I tapped the buttons on the steering wheel …, I have a 2000 dodge ram 1500 with a 5.9 l engine. my check engin light came on and the obd fault code is p0138 which is o2 sensor high voltage (bank 1 sensor 2). There are 2 o2 sensors installed, one …, 1998 Dodge Neon 4 cyl Automatic i have a 98 dodge neon and i recently had the check engine light come on and well i got it checked... HOME. ASK A QUESTION ... well I drove it for a couple of days and than it came back on and so I went to get it check and they gave me the code p0138 saying that the in out voltage from oxygen sensor 2 in bank1 is ..., Code P0140 indicates that there’s problem with the post-catalytic monitoring oxygen sensor. Found behind the catalytic converter, this sensor measures the oxygen levels in the exhaust after the converter breaks down the unburned fuel.. If the catalytic converter is in good condition, this oxygen sensor takes more time to change its voltage …, Feb 9, 2024 · P0138 Code — What it means and how to fix it Learn what a P0138 code means, the most common causes, and the diagnostic procedure. A P0138 Code is a generic trouble code defined as an O2 Sensor Circuit High Voltage (Bank 1 Sensor 2). Bank 1 is the part of the engine that houses cylinder number one. Sensor 2 is located after the catalytic ... , My 98 Grand Caravan just set a P0138 code - the van has a 3.3 with about 120,000 miles on it. I believe the code is an O2 code (rear or downstream) My..., In this video we uncover the common cause for Chrysler Dodge and Jeep vehicles having a code P0137, P0138, P0157 and/or P0158. these codes indicate an issue ..., A code P0138 may mean that one or more of the following has happened: Faulty O2 sensor. Short to battery voltage in O2 sensor signal circuit. High fuel pressure (not as likely) …, I have a 1997 Dodge Dakota Sport, 3.9L, 4x4, 5spd. Recently it started losing power going up hills and the Check Engine light came on. At the advice of people on the board, I took it to AutoZone to read the codes. The code came back P0138 which is the Downstream oxygen sensor overvolt., Women's cross-country skier Dinigeer Yilamujiang and Zhao Jiawen, who competes in men's Nordic combined, delivered the final Olympic flame at the opening ceremony. The symbolism wa..., To help you in finding the correct oxygen sensor, here are some more specifics: Vehicles with 2 upstream oxygen sensors, a P0132 DTC is identifying the one that's on Bank 1. Bank 1 is the bank of cylinders that have cylinders 1, 3, 5, and 7 (5.2L and 5.9L V-8 engines) and 1, 3, and 5 (3.9L V-6 engines). Vehicles with only 1 upstream oxygen ..., The P0138 is an OBD-II trouble code that stands for “02 Sensor Circuit High Voltage (Bank 1, Sensor 2)” and is triggered when your vehicle’s primary computer, also known as the powertrain control module (PCM), detects that the voltage signal from the rear O2 sensor is too high for a given period., In most cases, replacing the faulty oxygen sensor will eliminate the problem responsible for the P0038 code. The exact fix, however, will likely differ based on the make and/or model of the vehicle. A P0038 Dodge case, for example, may entail a different repair than those that have worked for a P0038 in a Chrysler., Apr 17, 2018 · For both errors, possible causes: Bad O2 sensor. Bad O2 sensor heater circuit (bad sensor). Fuel pressure too high. Engine coolant temperature sensor bad. Bad O2 sensor wiring. Bad engine controller. For both sensors to "fail" concurrently suggests the problem is not with the sensors but is something common to both. , P0138 is a common OBDII code that occurs in many vehicles, including the Chevy Silverado. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more. Voltage to the sensor is to high (wiring problem, think short) Bad O2 sensor itself. There are also some less likely problems that can cause …, Dodge Rams have a reputation for being quality trucks, and some of these workhorses take a lot of abuse out on the road and in the field. If you want a new Dodge, such as a Dodge R..., 3. Location. Texas. Ram Year. 1986. Engine. 5.9L V8. Other than the normal problems I have a 2001 2500 SLT Laramie 4 door Ram with a 5.9 L. I had recently popped a code for P0138 and after replacing it with the crossover Bosch 13280 O2 sensor, now its popping for the upstream sensor having the short to positive which I believe is P0132., Car shopping? If you’re looking for a midsize SUV, consider a Dodge Durango. Durangos have roomy cargo areas, plenty of passenger space and impressive towing capacity. Whether you’..., Ram Year. 2006. Engine. Hemi 5.7. P0138 is a Bank 1, Sensor 2 (post catalytic) O2 Oxygen Sensor Circuit High. It sounds to me like that O2 sensor needs to be replaced based on what you're telling us and the code that you have given. Your post-cat O2 sensor won't follow your pre-cat O2 sensor, it's there to tell you that your catalytic ..., I have a check engine light that shows the P0138 code, Could someone shed some light, it's supposed to mean the following: P0138 (M) 1/2 O2 Sensor Shorted To Voltage Oxygen sensor input voltage maintained above normal operating range. ... A forum community dedicated to all Dodge owners and enthusiasts. Come join the discussion …, The P0138 could be bad a bad O2 sensor, High fuel pressure or short to battery in O2 sensor circuit. P1491 is possibly your AC fan or fan relay . 2004 Dodge Ram 1500 QC Laramie Hemi!! :rck: Color - Black 7 Speaker Infinity Cd Stereo with 6 CD Stacker Tow package Iceburg Stainless Steel Nerf Bars Color matched Arrow Matrix Canopy …, trouble code p0158 2006 dodge stratus 2006 dodge stratus 2.7 140k obd 2 code po158 have replaced and catalytibank 2 pos. 1 and pos. 2 sensors and catalytic ... 2002 nissan sentra P1217 P0507 P0138 P0158 P0117 P0139 P1146 Hello I have a 2002 nissan sentra 1.8l it turns over but no start and the OBD2 reader sats its 8 codes P1217 P0507 P0138 ..., Ram Year. 2006. Engine. Hemi 5.7. P0138 is a Bank 1, Sensor 2 (post catalytic) O2 Oxygen Sensor Circuit High. It sounds to me like that O2 sensor needs to be replaced based on what you're telling us and the code that you have given. Your post-cat O2 sensor won't follow your pre-cat O2 sensor, it's there to tell you that your catalytic ..., Description. The conditions that caused this diagnostic to fail is when the upstream O2 Sensor biased from an exhaust leak, O2 sensor contamination, or some other extreme operating condition. The downstream O2 sensor is considered to be protected from extreme environments by the catalyst. The Powertrain Control Module monitors the …, Open-source software gave birth to a slew of useful software in recent years. Many of the great technologies that we use today were born out of open-source development: Android, Fi..., P0138 Causes. Faulty O2 Sensor; Short to battery voltage in O2 sensor signal circuit; Corroded wiring; Fuel pressure too high; Engine coolant temperature sensor; …, Your vehicle will display signs of ailment when code P0138 is stored in it. The symptoms are the same for P0138 Nissan, P0138 Toyota, or even P0138 Dodge. The first sign you will notice is an illuminated Check Engine Light. However, soon enough, other symptoms will follow. You may observe a reduction in vehicle fuel economy., P0138 is Bank 1 (Driver side), Sensor 2 (downstream of the catalytic converter). I like Bosch & NGK, or whatever is cheaper from the Rock. OEM always seem to be more pricey, and often times they are Bosch sensors, but with a OEM PN. Only two defining forces have ever offered to die for you, Jesus Christ and the American Soldier.