Dodge p0138

Oct 15, 2021 · 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.

Dodge p0138. 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 …

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 …

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 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. Voltage to the sensor is to high (wiring problem, think short) Bad O2 sensor itself.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 ...CODE P0037, P0038, P0136, P0137, P0138, P0139, P0140, P0141 DODGE DART, CHRYSLER 200, JEEP CHEROKEE COMPASS RENEGADE, RAM PROMASTER CITY, FIAT 500X, FIAT TOR...What Does Code P0158 Mean? P0158 definition: O2 Sensor Circuit High Voltage (Bank 2, Sensor 2) Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible. Diagnosis: It is important to complete the entire diagnostic process when …

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 …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 …11 Mar 2021 ... 4:23 · Go to channel · How to FIX P0138 P0420 P0430 on 2011-14 DODGE CHARGER O2 Sensors (100% WORKS). Vintage Profit•13K views · 8:42 · ...7 Oct 2016 ... 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 ... Código P0138 Dodge Descripción del código de falla P0138 Dodge. Se describe con un voltaje alto en el circuito del sensor de oxigeno 2 ubicado en el banco 1. Un código muy común en la mayoría de los modelos de Dodge. Siendo un código genérico de tren motriz, cualquier modelo fabricado con sistema OBD2 puede presentar esta falla. 11 Jul 2020 ... Kode kesalahan P0138, diagnostik dan perbaikan mobil. 2.9K views · 3 years ago ...more. OBD-2 codes. 41.1K.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.Summary. The P0152 code stands for “O2 Sensor Circuit High Voltage (Bank 2, Sensor 1),” which typically means the pre-catalytic converter oxygen (O2) sensor’s voltage signal has been out of the set range for longer than a specified amount of time. Some possible causes of the P0152 code include a faulty O2 sensor, malfunctioning wiring or ...

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.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.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 MechanicP0138 is a common OBDII code that occurs in many vehicles, including the Dodge Challenger. 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 …

Gm dtc u0140 00.

Dodge Charger Mechanical Problems and Questions. ... It's showing a P0138 which is a problem with the 1/2 O2 sensor circuit. I assume the O2 sensor has gone bad.P0138 definition: O2 Sensor Circuit High Voltage (Bank 1, Sensor 2) Issue Severity: MODERATE – Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed withing the next month to prevent internal engine damage.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 ...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 ...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.

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 ...Dodge Stratus P0138 Causes. Here are the most common issues that cause the P0138 code in the Dodge Stratus. 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 aged vessels are vulnerable to faults like engine failures and pose safety risks to crews and the environment, according to the Washington Post. Jump to Russia is using decades...4 Jun 2015 ... P0037 P0038, P0136, P0137, P0138, P0139, P0140, P0141 DODGE DART CHRYSLER 200, JEEP CHEROKEE COMPASS. Auto Repair Guys•10K views · 38:30.Jul 27, 2013 · P0137 p0138 o2 sensor issues. I recently purchased a 2007 dodge charger 3.5L off a small police dept in ontario and it runs great, decent shape except I got codes 0137 and 0138 on my first short Drive. I replaced the problems sensor reset codes and drove it once with no codes. Moved it off the street and codes came back. We’ll explain the significance of “O2 Sensor Bank 1, Sensor 2” and guide you through common symptoms, possible causes, diagnostic steps, and potential solutions to clear the P0138 code.This car is perfect for drag racing with the kids on the way to Grandma's house. By clicking "TRY IT", I agree to receive newsletters and promotions from Money and its partners. I ...Are you in the market for a new or used Dodge vehicle? If so, finding the right dealership is essential. With so many options out there, it can be overwhelming to choose the best o...El Engine Control module (ECM) interpreta rica cuando el voltaje del oxygen sensor es por encima de los 0.45 voltios. El código P0138 es común en: Chery, Chevrolet Aveo, Chrysler Town & Country, Dodge Dakota, Dodge Neon, Dodge Ram 1500, Dodge Stratus, Ford Explorer, Ford Focus, Ford Fusion, Honda, Jeep Grand Cherokee, Jeep Liberty, Nissan ...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 …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.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.

Dodge Stratus P0138 Causes. Here are the most common issues that cause the P0138 code in the Dodge Stratus. 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 …

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’...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. 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 ...7617 posts · Joined 2013. #2 · Nov 28, 2021. P0520-ENGINE OIL PRESSURE SENSOR CIRCUIT. Whenever you see the word circuit in a code description, you should check the wiring harness first before buying anything. Especially look for wire rub through on the harness that is on the top side of the engine.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’...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. 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...Feb 8, 2019 · P0138 is a common OBDII code that occurs in many vehicles, including the Dodge Avenger. 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.

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El Engine Control module (ECM) interpreta rica cuando el voltaje del oxygen sensor es por encima de los 0.45 voltios. El código P0138 es común en: Chery, Chevrolet Aveo, Chrysler Town & Country, Dodge Dakota, Dodge Neon, Dodge Ram 1500, Dodge Stratus, Ford Explorer, Ford Focus, Ford Fusion, Honda, Jeep Grand Cherokee, Jeep Liberty, Nissan ...Feb 3, 2019 · 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. 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 ...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.2002 RAM 1500 4.7L SILVER QB 4wd Performance:Fastman 70mm TB Superchips 3715 AIRRAID w/ AMSOIL Synth. Filter Powerwire Flowmaster 50 Series SI/DO DUMPED! and Painted VHT Black AMSOIL 5w-30/ …Dec 20, 2018 · Te suministramos todo lo que necesitas saber sobre el código DTC P0138 Descripción, causas, síntomas y posibles soluciones. LEER SOLUCIÓN DEL CÓDIGO O... Dodge released the Pentastar 3.6-liter engine in 2011. This motor is found in a wide range of Chrysler- and Dodge-branded vehicles. Upon its release, there were a few common proble...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 censors aren't as sophisticated as you might think. WeChat users in China have come up with creative ways to circumvent censorship, and one of the more effective methods they’v...What Does Code P0158 Mean? P0158 definition: O2 Sensor Circuit High Voltage (Bank 2, Sensor 2); Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible. Diagnosis: It is important to complete the entire diagnostic process when …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... ….

Dodge. Code: P0138. Definition: O2 SENSOR 1/2 CIRCUIT HIGH. Description: The 4-Wire Oxygen (O2) Sensor is equipped with a galvanic battery that typically generates a voltage signal between 0.0 volts and 1.0 volts. The 4-Wire O2 Sensor also includes a heating element that keeps the sensor at proper operating temperature during all operating modes.1.9K. 968K views 11 years ago. Manufacturers constantly strive to build their vehicles to meet tougher emission standards each year. This can be a nightmare when trying to …O que significa o erro P0138? O erro P0138 indica uma falha no/na ( Sensor de oxigênio 2, bloco 1 - alta tensão . O que causa o código P0138? Em resumo isto pode acontecer por vários motivos, tais como problemas no/na "Curto-circuito ao positivo nos cabos, sensor de oxigênio, módulo de controle do motor ". Qual solução para a falha P0138?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 the OBD-II generic code indicating the O2 sensor for bank 1 sensor 2 fails to have a lower voltage output below 1.2 volts for more than 10 seconds indicating a lack of oxygen in the exhaust stream. What causes the P0138 code?The P0132 code indicates that there is a high voltage issue on your Oxygen sensor or Bank 1. This code occurs when the powertrain control module (PCM) detects that the oxygen sensor’s voltage reading is too high. In some cases, the code sets because the isn’t responding quickly enough to adjust for the air-fuel mixture in the combustion ...The benefits of saying yes to a new project are pretty obvious. It’s what a team player would say and it’s a way to demonstrate that you’re ready for new and exciting responsibilit...What Does Code P0158 Mean? P0158 definition: O2 Sensor Circuit High Voltage (Bank 2, Sensor 2) Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible. Diagnosis: It is important to complete the entire diagnostic process when … Dodge p0138, The length of Dodge’s 2015 Ram Trucks range in length from 209 inches to more than 248 inches, depending on the model. The 2015 Ram 1500 is 209 inches long, while the 2015 Ram 2500..., 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 ... , 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., 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., 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 …, 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., 2005-2006 Dodge Charger Dodge Factory Service Bulletin OBDII Code P0133. ⚠ Check if your Dodge have Safety Recalls. Description. The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube ..., Dec 28, 2007 · 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 ... , The benefits of saying yes to a new project are pretty obvious. It’s what a team player would say and it’s a way to demonstrate that you’re ready for new and exciting responsibilit..., 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 ... , 24 Aug 2012 ... ... p0138 is the high voltage code and the p0141 is the heater circuit so ... Chrysler Dodge Jeep P0157 P0158 P0137 and/or P0138. The Car Doctor ..., Feb 8, 2019 · P0138 is a common OBDII code that occurs in many vehicles, including the Chrysler 300. 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. , 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..., 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 ..., Repair Information for P0138 Dodge code. Learn what O2 Sensor 1/2 Circuit High means, location and how to repair? The Heated Oxygen Sensor 2 (HO2S) (Rear O2 Sensor), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank., Dodge / Ram 1500 / 2001 / P0138- OBD code; P0138- OBD code. 2001 Dodge Ram 1500. Asked by CDullea in Havelock, NC on . October 10, 2015. replaced bank 1 sensor 1& 2 in May 2015. had inspection two days ago, and the night before i had no problems, and the morning of inspection....the check engine light came on, and …, 2002 Dodge Ram 1500 5.9LHow to Fix a P0138 Code: O2 Sensor Circuit High Voltage Bank 1 Sensor 2Manufacturers constantly strive to build their vehicles to mee..., P0138 Code - Possible Pre-Cat problem. I have a '01 R/T from CA. This D has 2 pre-cats and one main cat. When running Gibson headers, my D had intermittent problems with the P0138 code. After changing the O<sub>2</sub> sensors, the problems kept returning. Eventually we found that the pre-cat had gone bad., 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 ..., 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 …, 7 May 2021 ... 9 Bad Oxygen Sensor Symptoms · 2006 MAZDA3 P0131 P0134 P2251 - UPSTREAM OXYGEN SENSOR REPLACEMENT (BANK 1 SENSOR 1) - EASY DIY! · 08 Dodge ..., The cost of a standard tune-up for a Dodge Charger depends on a number of factors, but it can range from $200 to $800, as of 2015. If major servicing is necessary in addition to th..., About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ..., 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., Dodge Stratus P0138 Causes. Here are the most common issues that cause the P0138 code in the Dodge Stratus. 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 …, P0138 is a common OBDII code that occurs in many vehicles, including theDodge Sprinter. 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., Sep 14, 2008 · 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. , 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..., 2005-2006 Dodge Charger Dodge Factory Service Bulletin OBDII Code P0132. ⚠ Check if your Dodge have Safety Recalls. Description. The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube ..., P0138 is a common OBDII code that occurs in many vehicles, including the Dodge Caravan. 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 is a common OBDII code that occurs in many vehicles, including the Dodge Dart. 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 …, 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 …, 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 …