Engine light on. P000B Code

P000B exhaust (B) Camshaft position slow response Bank 1. I got that on the scanner today. Can you please tell me what service do you recommend me to get on yourmechanic.com and also what part i need?

Thank You,

Anthony Torres

My car has 121000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hello. When this code comes up it is because the computer is not detecting that the camshaft is moving as it should when the variable valve timing system is functioning. This can be caused by a number of things. It can be due to old engine oil, the wrong oil weight, a dirty oil filter, a bad camshaft position sensor, a bad cam actuator or a more serious engine issue. I usually start by checking the oil and making sure that it is at the right level. If I suspect the oil may be an issue I change it and install the correct filter. I then clear the code and see if it returns. If it does then I move to checking the camshaft position sensor and the camshaft actuator to make sure they are functioning as they should be. Since you are considering YourMechanic, a diagnostic Check Engine Light inspection will best suit you.

How to Identify and Fix Common car Problems ?

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

This is a powertrain control module (PCM) and engine control module (ECM) issue that indicates a timing issue within the camshaft of the affected vehicle. As stated, the P000B code refers to a camshaft issue.
Codes P000A and P000B are generic codes related to camshaft timing as stated in this article. It can be caused by a number of issues from something as simple as a loose gas cap, to a faulty engine control module (ecm), sometimes referred to as a powertrain control module (pcm).
The OBD error code P000C indicates that your vehicle has a problem with the performance of its engine and the fuel efficiency. This means that the powertrain control module (PCM) which controls the oil control valves has detected a fault with the position and timing of the camshaft.
P000B is triggered when the powertrain control module (PCM) perceives a slow response in the camshaft position phase change from the bank 1 exhaust (B) camshaft.
You can drive if your car flags up a P000A code, but it is recommended that you limit how far you drive and how often you drive to avoid the issue escalating before you can visit a repair center. After some time, this issue will lead to engine failure, and this can be dangerous, especially if it happens while driving.
Error code P0340 indicates a malfunction with the camshaft position sensor A circuit. This type of malfunction can cause serious issues that require immediate repair because the underlying cause of the code could damage your vehicle`s engine if you continue to drive it.
Reasons for failure of the camshaft sensor can be: Mechanical damage. Break in the encoder wheel. Internal short circuits.
A failing camshaft position sensor begins losing its ability to quickly transfer data. Mismatched fuel delivery and ignition timing, even if off by a few milliseconds, will cause your vehicle to sputter, accelerate poorly, lack power, stall or even shut off.
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.
Your vehicle should be equipped with four different camshaft position sensors, one for each of the engine`s camshafts. They are mounted in the front of the cylinder heads, near the camshaft actuators, across from each other.
When the car eventually starts, the engine will rattle, may make a grinding noise or knocking sound, and the check engine light may remain on. Some drivers have complained that their car starts to go into limp mode. The vehicle may stall or stutter and drivers will have trouble accelerating after coming to a stop.
The short answer is yes, it is safe to drive with a bad camshaft sensor, but it`s not good for your engine long-term. You`ll likely see a higher fuel consumption and poorer engine performance the longer you wait to get it fixed.
On some vehicles, a bad crankshaft position sensor can create a no-start condition while for others it may trigger limp mode. Driving itself can become cumbersome with a bad camshaft position sensor, so it`s best to replace it.
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.
Engine Misfires: A failing camshaft position sensor can cause your engine to misfire. Transmission Shifting Problems: The data sent to the engine control module can stop the transmission from shifting properly.
The crankshaft position sensor is the most important of all engine management sensors, and the engine will absolutely not run without it.
Each time the car is started, the camshaft position sensor will play a vital role. The camshaft position sensor on a car is built to last as long as the car does, but in most cases it will have to be replaced well before that.
In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with variable valve lift systems.
Basic Theory. After multi-valve technology became standard in engine design, Variable Valve Timing becomes the next step to enhance engine output, no matter power or torque. As you know, valves activate the breathing of engine.
A broken camshaft is usually caused by a connecting rod or other rotating part coming loose and striking it. Sometimes the cam will break after a short time of use because of a crack or fracture in the cam due to rough handling during shipping or improper handling prior to installation.
Before connecting, clean the sensor with a cleaning solution and let it dry. Connect the sensor`s three wires to their original place. Reconnect the battery and restart the system. You have thoroughly disinfected the camshaft position sensor.
If your vehicle idles roughly, stalls frequently, has a drop in engine power, stumbles frequently, has reduced gas mileage, or accelerates slowly, these are all signs your camshaft position sensor could be failing.
Common signs include lacking power when accelerating, rough or slow idle, stalling, inability to shift up, and the Check Engine Light coming on.
Camshafts can be rebuilt if they have lobe wear, as long as that wear is not excessive. Above you can see examples of both a rebuildable and non-rebuildable camshaft. The rebuildable camshaft has slight wear. You can see that the wear is not deep and just looks like the cam has been scratched.

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