P2090 - OBD Trouble Code

<<See All OBD Codes

The trouble code P2090 can be defined as B Camshaft Position Actuator Control Circuit Low Bank 1. In order to adjust the timing of the camshaft, newer vehicles are using a variable timing system to alter the timing in relation to the crankshaft so that the fuel efficiency and performance can be increased. The intake valves will open and close based on the rotation of the camshaft. In order to advance or delay the camshaft timing, the oil pressure is used by the PCM which changes when the valves open and close accordingly. The P2090 error will be set by the PCM if the camshaft fails to adjust as per command.

The B camshaft position actuator control circuit is being monitored by the engine control module. This trouble code would be set by the ECM when the B camshaft position actuator control circuit would not be as per the specifications set by the manufacturer. The engine control module, powertrain control module or the transmission control module monitors this circuit depending upon the particular automobile.

What causes this problem with the B Camshaft Position Actuator Control Circuit Low Bank 1?

• Shabby timing belt or chain
• Faulty camshaft variable timing solenoid
• Malfunctioning variable valve timing actuator
• Engine oil level is too less
• Some issues related to the fuse or fuse-able link
• There might be misalignment of timing components
• Unusable connector
• There can be inoperative wiring
• There can be distorted ECU

1. Camshaft position actuator - A very rough idle or a drop in engine power shows that the camshaft position actuator is faulty which needs immediate replacement.
2. Crankshaft valves – An increase in the internal engine pressure can likely damage the crankshaft valves. Get the replacement for the damaged crankshaft valves from Parts Avatar.
3. Engine Control Module - There can be some engine performance issues due to faulty engine control module. If the ECM fails or has any problems it can lead to performance issues with the vehicle like misfires, hesitation, loss of power, and sometimes even decreased fuel economy.
4. Oil control valve – The oil control valve is responsible for reducing the gas emission and increasing the performance of the engine. Replace the faulty oil control valve to avoid the P2090 error code getting stored.
5. Powertrain Control Module - PCM stands for powertrain control module. It is a car part, a control unit which is utilized on motor vehicles. It is generally a combined control unit, consisting of the engine control unit (ECU) and the transmission control unit (TCU).
6. Electronic Control Unit - If your automobile's check engine light remains on constantly, and never goes off, there's a good chance that your vehicle has a damaged electronic control unit. There are a lot of reasons why a car's check engine light will remain on. The most common reason is a defective ECU.
7. Engine wiring connectors – The damaged engine wiring connectors have to be replaced quickly as they connect various components to the engine. Fix it soon to avoid P2090 error.
8. Diagnostic Tools - It is always advisable to use the correct tools and equipment while resolving any OBD code issue as even small mistakes can lead to wrong diagnosis. Thus, always take help from a professional who has the knowledge and experience to such tools in an efficient manner. Buy new quality diagnostic tools from us today!

Our main motive is to achieve customer satisfaction as for us our customers are everything and that’s why we will help you to diagnose P2090 code by mentioning some major symptoms below:

Common Symptoms

• The service engine soon light can start lighting up
• Uneven engine idle
• Decrease in the overall oil pressure
• Engine might start misfiring
• Substandard engine performance
• Growth in the fuel consumption
• Change oil or service soon light might come into signal

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P2090:

• Recondition the non-functioning timing belt or chain
• Adjust the flawed ECU
• Rehabilitate the defaults in the filter
• You must fix the defective camshaft variable timing solenoid
• Make sure to mend the faulty variable valve timing actuator
• It is essential to clean the corrosion from connectors
• Repair or replace the quirky wiring

• Carefully adjust the faults in the blown fuse or fuse-able link

However, if you face any issue then we have stocked a wide range of best priced ECM, PCM, VVT, VCT, oil pressure sensor, timing belt, oil pressure switch, ecu car, pcm car, body control module components, timing chain and more to help you out in fixing your car.

Here are some steps which you should follow in order to diagnose this fault code:

Obtain your vehicle specific technical service bulletins (TSB) and see if you can find the code and ways to resolve it there. The TSB will be source of reference through the diagnostic procedure. Make sure you match the TSB’s accurately with your vehicles, year, make, model and engine details. After that the next step would be to inspect the level of the oil as well as its condition.

The proper oil pressure would play a major role in the functioning of this circuit. After that all the components which are within the circuit should be located and then a visual inspection should be performed to inspect the related wiring for obvious faults like scraping, rubbing, bare wires, or burn spots. Then examine the connectors for security, corrosion and defective pins. This process must include all related sensors, constituents and the ECU.

The advanced steps become very vehicle specific and need the appropriate advanced equipment to perform in the right way. There would be a need of a digital multimeter and the specific technical references to carry out this procedure. Voltage requirements will vary depending upon the specific year, make and model of the vehicle. The timing must be checked using the appropriate test equipment and the settings must be precise for the engine to operate correctly. An incorrect timing reading is an indication that essential timing components such as the belt, chain or gears may be worn or damaged. If this code is exhibited immediately after a timing belt or chain replacement, then you can suspect misalignment of timing components as the possible cause.

The camshaft and crankshaft sensors are generally supplied with a voltage reference of approximately 5-volts from the electronic control unit. If this process identifies the absence of a power source or ground, then there would be a need of continuity testing to check the integrity of the wiring, connectors as well as components. Make sure to perform the continuity tests with the power removed from the circuit and the normal readings for wiring and connections should be 0 ohms of resistance. Resistance or no continuity would indicate that the wiring might be opened or shorted and thus, it should be restored or repaired properly.

Common Mistakes When Diagnosing The P2090 Code

• Common mistakes while diagnosing this trouble code are unnecessary and expensive replacements which usually happens when one doesn't follow all the steps carefully. In this code usually people replace ECU or sensors without even properly diagnosing it, when in reality the main problem is with the wrong timing alignment or insufficient oil pressure.
• The most common mistake while diagnosing this code is missing out on diagnosing steps which further leads to the expensive and unnecessary replacements. It is always recommended to seek the help of experienced diagnostician to avoid any mistakes.