P0015 code

I have a P0015 code and the check engine light on. Which one is the Bank 1 exhaust sensor in my car? I want to change it

My car has 127000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
A P0015 doesn’t refer to the Oxygen (exhaust) sensor. But if you want to change it, Bank 1 on the Mercedes V6 is the left (driver’s) side of the car. P0015 indicates the camshaft on bank 1 is over-retarded. This refers to a problem in the Variable Valve Timing (VVT or VCT) system. It is a hydraulic device on the end of the camshaft that makes small adjustments in the camshaft timing to suit the driving conditions. It has a number of very small orifices so it can easily become sticky or clogged and stop functioning in an older engine with dirty oil. If you are lucky, an oil change can solve the problem. But more likely the VCT will need to be dismantled and cleaned.To get this solved, you can contact Your Mechanic to have a technician come to your home or office to check out your Mercedes and let you know what needs to be done to solve the problem.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

What causes the P0015 code? The variable camshaft timing (VCT) oil control valve (OCV) is stuck in the open position. The camshaft phaser is stuck in the retarded position due to damage or clogged oil passages. Oil flow problems to the VCT piston and phaser from incorrect oil viscosity.
Diagnostic trouble code (DTC) P0015 stands for Exhaust “B” Camshaft Position Timing – Over – Retarded (Bank 1). This code involves your vehicle`s camshaft timing, specifically your variable valve timing (VVT) also known as variable camshaft timing (VCT).
A camshaft position sensor can`t be reset. It either works, or it doesn`t. And, when it doesn`t, it has to be replaced. You`ll know you`re having camshaft sensor issues when your check engine light is on, the car has difficulty accelerating, or is stalling.
The most common cause is a failing or a defective camshaft position sensor. Other problems can include circuit issues, like loose connections or damaged wiring, errors with the PCM, or a damaged reluctor wheel for the camshaft position sensor.
OBD2 Diagnostic Trouble Code P0340 indicates that the Camshaft Position Sensor `A` Circuit Malfunction in Bank 1 has been detected. The camshaft position sensor (CMP sensor) provides information regarding the rotational speed of the camshaft and where the camshaft is positioned in relationship to the crankshaft.
Sensor 1 is the upstream oxygen sensor. It is the sensor that measures the oxygen content in the exhaust, providing an input to the computer, which determines how to adjust the air/fuel ratio. Sensor 1 is the sensor closest to the engine.
Oxygen sensor bank 1 sensor 1 is also known as upstream oxygen sensor or lambda sensor 1. This oxygen sensor is located before the catalytic converter and it is very important for the normal operation of your engine.
Reasons for failure of the camshaft sensor can be: Mechanical damage. Break in the encoder wheel. Internal short circuits.
The most common cause is a failing or a defective camshaft position sensor. Other problems can include circuit issues, like loose connections or damaged wiring, errors with the PCM, or a damaged reluctor wheel for the camshaft position sensor.
These are the most likely causes: The camshaft timing is off. The valve control solenoid is stuck open. The valve control solenoid system has faulty or damaged wiring.
Definitely don`t submerge the sensor. Cam/Crank sensors are usually hall-effect magnetic sensors that wear over time due to heat. Cleaning them will not commonly make them work any better.
These are the most likely causes: The camshaft timing is off. The valve control solenoid is stuck open. The valve control solenoid system has faulty or damaged wiring.
Car Will Not Start: Over time, as the camshaft position sensor fails, the signal it sends to the engine control module weakens. When the engine no longer receives the signal, you will not be able to start your car. Engine Misfires: A failing camshaft position sensor can cause your engine to misfire.
The most common cause is a failing or a defective camshaft position sensor. Other problems can include circuit issues, like loose connections or damaged wiring, errors with the PCM, or a damaged reluctor wheel for the camshaft position sensor.
The following are the most likely causes: The camshaft`s timing is incorrect. The valve control solenoid has failed and is stuck open. The valve control solenoid system`s wiring is faulty or damaged.
The most common cause is a failing or a defective camshaft position sensor. Other problems can include circuit issues, like loose connections or damaged wiring, errors with the PCM, or a damaged reluctor wheel for the camshaft position sensor.
These are the most likely causes: The camshaft timing is off. The valve control solenoid is stuck open. The valve control solenoid system has faulty or damaged wiring.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

I have a Code P0601 on the PCM. I replaced the PCM, and now I have a code P0118, code P0123, and code P0193.
ANSWER : Hi there, the short answer to your question is no . A PCM with a P0601 (which is a memory module error in the PCM) cannot reliably retrieve codes for the codes you list (P0118 – coolant temp sensor, P0123 – throttle position sensor, P0193 – fuel rail pressure sensor.

Most likely, the P0601 prevents the PCM from getting any codes from the engine sensors. The memory module error may cause in data corruption for collected sensor values, lose of data over multiple sampling periods, or failure of the data collection to work at all. Replacing the PCM was a necessary expense.

If you need assistance with the "new" codes, I would recommend having a Check Engine Light inspection completed by a mobile, professional mechanic, such as one from YourMechanic, to diagnose the new error codes and get an accurate assessment of the repairs needed.

Read Full Q/A … : P0015 code

Can i retrieve CEL code from car … forgot what code it hade in my car .. put headgasket sealer and i erase the code ..
ANSWER : Once a trouble code is erased, it cannot be retrieved. The engine controller does not have a "recycle bin" like they have on Windows. If the car still has a problem, the code will come back up after some driving. However, the controller will not turn on the CEL until it has seen the malfunction on two separate "trips." A "trip" is a driving cycle where the car is started cold, driven until it is fully warm and through a certain number of accelerations, and shut down. So you might not see the CEL for a couple of days. As for the "head gasket sealer," I wouldn’t hold out too much hope of that solving a problem. At the very best it might put off the symptoms for a short while. If you need help interpreting codes that come up, or solving a head gasket issue, contact Your Mechanic. They can send a technician to your home or office to read the codes on your car and help you decide what to do.

Read Full Q/A … : P0015 code

It threw a code 21 , throttle position sensor bad code. i replaced it and the code went away but i still have no spark.
ANSWER : Hello and thank you for contacting YourMechanic. The problems that you are encountering with your vehicle, could be caused by the harness to the Throttle Position Sensor (TPS) or the computer itself.

Check the harness to the TPS for any debris or any corrosion. Hook up a paperclip to the harness and turn on the key. Use a multimeter and check for voltage at the pins of the harness. Make sure that the ground on the sensor is grounded and has no resistance. If you find that the harness is having too much resistance, then I recommend having the main engine harness replaced. If you have replaced the harness and still have the same problems, then the computer will need to be flashed or replaced.

I recommend having a professional, like one from YourMechanic, come to your home to diagnose your car’s no start condition before replacing any parts.

Read Full Q/A … : P0015 code

Check Engine Light codes. 2006 Mercedes Benz E55 AMG
ANSWER : Since you are getting many different codes from different areas of the engine, you may need to have the system hooked up to a factory scanner since most of these generic codes do not cross over in my repair software. I would also check with the local dealer to see if any service campaigns are open on the vehicle since there are over 30 possible campaigns that could pertain to this vehicle and some of the problems you are having with the secondary air system. This may be the cause of some of the codes and supercharger disabling. If you’d like to have this checked elsewhere, a qualified pro from YourMechanic can come to your car’s location to go through each Check Engine Light code firsthand and have them resolved.

Read Full Q/A … : P0015 code

Service engine warning, MAF code and O2 sensor code, along with check suspension light are turned on
ANSWER : Hello, it sounds like you have quite a few things going on. I am going to do my best to break them down for you.

First if the engine is very loud when idling and the belt has already been replaced, there may be an issue with the tensioner or idler pulley.
Next, the Navigator is known for needing service to the air suspension system as it gets up in miles, the most common causes of these are the air struts themselves have failed, or one of the air lines has a leak.
Lastly, if the O2 sensor and MAF are continually coming back after the sensors have been replaced, the most common cause would be either an exhaust leak or a vacuum leak.

Qualified technicians such as the ones at YourMechanic will be able to diagnose these issues and recommend the best path to repair, starting with a diagnosis of your warning lights.

Read Full Q/A … : P0015 code

EGR code, Cylinder 4 misfire code 0304 detected.
ANSWER : Hi there. The Exhaust Gas Recirculation (EGR) valve may be not designed for the emissions requirements for U.S. standards. If the EGR is pulling from cylinder number 4 and after replacing the EGR and the computer detects a misfire, then the EGR is malfunctioning and not responding. When you close off the tube to the EGR and the EGR light comes on and the misfire light goes out, then the EGR is not responding to your emissions system. I recommend replacing the EGR with the OEM specified part for the engine and all of the issues should go away. If you need further assistance with your misfire and EGR, then seek out a professional, such as one from Your Mechanic, to help you.

Read Full Q/A … : P0015 code

I had my ECS replaceed and my TPS and the code for TPS was gone but the ECS code came on after 5 miles is it possible the new one
ANSWER : There is a possibility the new module is faulty, but there may be something else going on with the car as well. Wiring can be an issue with these vehicle so consider hiring an experienced technician like one from YourMechanic to loo at the car and offer a personal diagnosis. You can have bad knock sensors offering false readings or some faulted wiring.

Read Full Q/A … : P0015 code

P2002 DTC Particulate Trap Efficiency Below Threshold
ANSWER : Hi there. The P2002 could be solved by checking the following conditions:

Driving too slow or idling the engine too long will cause this code. It takes heat in the 932 F to 1112 F range to burn off the soot in the DPF
There is an air leak forward of the DPF
Fuel with a large percentage of sulfur will clog the DPF
Aftermarket accessories and performance modifications will cause the code P2002
A dirty air filter to the engine
The DPF may be damaged
There could be a defective ECU (computer)

If all of the symptoms are check and all are functioning properly, then I recommend seeking out a professional, such as one from Your Mechanic, to help you diagnose the emission system to your vehicle.

Read Full Q/A … : P0015 code