Guide To P2588 OBD Error Code Solutions

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OBD error code P2588 is an OBD-II generic code. Thought its generic, the steps to resolve it might vary a bit depending upon the specific make and model. Your vehicle will flash this OBD error code P2588 when it has some circuit related issues with the turbocharger boost control position sensor “B” circuit. If you wish to know more about this error code, you can through our subsequent sections.

If you are wondering what this error code P2588 indicates and how badly it will affect your vehicle, then you are at the right place. We at PartsAvatar are here to help you out with our expert knowledge. OBD error code P2588 is indicative of operative problems with the turbocharger boost control position sensor “B” circuit. In other words, this error code will be set by your vehicle’s powertrain control module when it is unable to receive correct reports from the turbocharger vane position sensor.

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

• Ground shortage to the turbocharger boost control position sensor
• Faulty TBCPS sensor
• Unlikely failure of the powertrain control module

1. Powertrain Control Module - You need to be aware of the fact that malfunctioning PCM can disrupt the normal functioning of the vehicle by affecting the transmission system and the fuel delivery system. This will cause the system to store wrong OBD error such as P2588 and thus can lead to misdiagnosis. So, it's definitely a good idea to replace the damaged ones.
2. Turbocharger Speed Sensor - A faulty turbocharger speed sensor can prove to be really harmful for your vehicle’s health and can also lead to OBD error code P2588. If you have a faulty one installed in your vehicle, we recommend you to change them at the earliest.
3. Turbo Pipes - Having bad turbo pipes can lead to flashing of OBD error code P2588. If you wish to get rid off this error code, then you better replace the faulty ones today.
4. Spark Plug - Spark plugs if gone bad can lead to many starting issues, so when you discover one with your vehicle, replace them with a new one at the earliest.
5. Knock Sensor - The function of the knock sensors is to sense vibrations caused by engine knock or detonation. OBD error code P2588 will automatically set if knock sensor is faulty. So, replace it as soon as you find it faulty.
6. Engine Control Module - Your car’s ecm performs various important functions that help your vehicle to run smoothly. It is the computer of your vehicle, don’t delay it’s repair if the P2588 code is flashing. If needed replace with PartsAvatar order from the comfort of your home, and have it delivered right to your doorstep.

We at Parts Avatar Canada care for our customers, and that’s why we will help you to diagnose P2588 code by listing out some major symptoms. They are mentioned below as follows

Common Symptoms

• Fall in engine performance
• Flashing of malfunction indicator lamp
• Hesitation while acceleration
• Decline in fuel efficiency

Learn the ways with which you can correct this trouble code:

• Firstly, undergo turbocharger speed sensor replacement, if found faulty
• Secondly, repair or replace the faulty turbocharger speed sensor harnesses
• Thirdly, fix the poor turbocharger speed sensor electrical connection
• Fourthly, repair or replace the fouled spark plugs
• Lastly, make sure to replace the bad knock sensors

Don’t get tensed if you are still facing any of these issues as we care for our customers and that’s why we offer a good range of TBCPS, PCM, Turbocharger, Transmission Temperature, Lack, Engine Misfire, Pressure Gauge, Boost Pressure, RPM, Spool Up, KOER and a lot more. We are sure that now all your issues would be resolved.

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 wirings 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 P2588 Code

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