P2589 - OBD Trouble Code

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Is OBD code P2589 flashing? Wondering what is P2589 code? OBD code P2589 relates to your vehicle’s boost control position sensor “B” circuit. This error code indicates that “B” circuit for turbocharger boost control position sensor is high. To know more about this error code, you will need to go through our following sections.

You will be diagnosed with this error code P2589 when your vehicle’s PCM, also known as the powertrain control module detects out of factory specification signals from the turbocharger boost control position sensor circuit “B”. There can be a number of reasons behind this error code. To know more about them, have a look at the below listed points.

What causes this problem with the Turbocharger Boost Control Position Sensor "B" Circuit High?

• Power shortage in the turbocharger boost control position sensor “B” signal circuit
• Possible opening in the ground circuit at the turbocharger boost control position sensor
• Faulty turbocharger boost control position sensor
• Faulty powertrain control module

1. Powertrain Control Module - Remember that a faulty Power Control Module (PCM) can become irregular to an extent that your car will fail to start or will begin to stall while running. You will notice that exhaust fumes are shorted while the car is running and emissions system control indicators are decreasing. So, having a PCM that isn’t working properly is not a good idea, you need to have it replaced right away to resolve the obd error code P2589.
2. Turbocharger Speed Sensor - If you are experiencing reduced engine acceleration, whining or rattling noises, then chances are that you might have a faulty turbocharger speed sensor and, in some cases, it might lead to OBD error codes like P2589. So, don’t think twice and replace the faulty ones today.
3. Turbo Pipes - If your vehicle’s turbo pipes are damaged then chances are that you might develop OBD error code P2589. So, what are you waiting for? Buy new ones with us now.
4. Spark Plug - It’s time to replace the faulty spark plugs if you are experiencing jittery idle condition. All we recommend you in this case is to replace the faulty ones today.
5. Knock Sensor - Starting troubles are associated with a faulty knock sensor, So if you have one in your vehicle then the best option is to replace it at the earliest.
6. Boost Pressure Gauge - If you are facing OBD error code P2589 then you must fix the issue with your vehicle’s Boost Pressure Gauge. We care for our customers, that’s why we have Boost Pressure Gauge for every make and model.
7. Engine Control Module - Your vehicle’s engine control module, abbreviated as ECM that is also known as the “brain” of the car should be changed immediately if broken or defective in order to avoid further problems caused due to an Error Code P2589. If you need one for your vehicle, you can easily find one with us.

If you are facing OBD error code P2589, then there are significant common symptoms that can be felt or observed. We have worked out a list here to help you out in understanding this problem better.

Common Symptoms

• Flashing check engine light
• Decline in vehicle’s performance
• Hesitation on acceleration
• Fall in fuel efficiency

It is very important to fix the fault code P2589. So here are some ways with which you can correct this issue:

• Start by undergoing turbocharger speed sensor replacement, if found faulty
• Next, repair or replace the faulty turbocharger speed sensor harnesses
• Next step is to fix the poor turbocharger speed sensor electrical connection
• After that repair or replace the fouled spark plugs
• Also, make sure to replace the bad knock sensors

However, if you face any issue then we have stocked a wide range of best priced TBCPS, PCM, Turbocharger, Transmission Temperature, Lack, Engine Misfire, Pressure Gauge, Boost Pressure, RPM, Spool Up, KOER and more to help you out in fixing your car.

If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

• To start your diagnosis, you will need few tools and equipment such as an OBD-II scanner, boost pressure gauge, hand-held vacuum pump, vacuum gauge and also a dial indicator set. To begin with the diagnosis, you will first need to test drive your vehicle and check for any engine knocks or engine misfires. Also check carefully the turbo hose amps, turbo intake and intercooler connections against any leaks or cracks.
• Look for any sort of tightness or malfunctioning in the air intake hoses. In case you discover that all the hoses, plumbing and connectors are good then take the turbo and make an attempt to move it into the intake flange.
• In case the housing is found to be movable then try tightening all the bolts and nuts as per the manufacturer’s specifications. Also, do place a boost gauge to make sure you can see it while actuating the throttle.
• Next step is to test drive your vehicle in a park and rev up the engine to 5000 rpm while releasing the throttle quickly. Carefully look at the boost gauge to see if it exceeds 19 pounds. In case it is below 14 pounds, there might be a turbo or exhaust problem. In this case you will need to undergo a visual inspection of all the related wiring and connections and replace the damaged ones before retesting the system.
• If you find that all the wiring and connectors are good, then attach the code reader or scanner to the diagnostic port. Record and freeze the data and clear the codes before test driving the vehicle. In case the code fails to return, then you might have an intermittent condition.
• Now, disconnect the actuator arm from the wastegate assembly and make use of the vacuum pump to manually engage the actuator valve. Carefully observe the wastegate to see if it can open or close fully. In case it can’t close or open completely then it will lead to a drop-in boost pressure.
• To inspect the turbocharger malfunction you will need to remove the turbo outlet hose and look inside the unit when the engine is cool.
• Check the unit for impeller fins that have been damaged or are missing, and look for signs that the impeller blades have been rubbing the inside of the housing. Also, check for the oil inside the housing.
• Now, you will need to use your hand to spin the blades and look for loose or noisy bearings. All these conditions will indicate towards a failed turbocharger.
• Next step is to install the dial indicator on the turbine outlet shaft and check lash and endplay. The excessive endplay will be observed if anything is outside of .003.
• In case you do not find any problem with the turbo and wastegate then locate a constant supply of vacuum at the intake manifold and connect vacuum gauge. Remember that a good working engine would read between 16 and 22 inches of vacuum, anything less than 16 inches will indicate towards a poor catalytic converter.
• In case of no other obvious problems, re-test the circuits, wiring and connectors of the turbocharger boost sensor.
• Lastly, check the voltage and resistance values against manufacturer’s specs.

Common Mistakes When Diagnosing the P2589 Code

• Failing powertrain control module (PCM)
• Failing turbocharger speed sensor
• Problematic circuit wiring