Error Code P0664: What It Means & What To Do?

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This diagnostic fault code is a generic powertrain code, which means that it would apply to the OBD-II equipped vehicles. The specific repair steps can vary as it depends upon the vehicle make and model.

The P0664 trouble code can be defined as Intake Manifold Tuning Valve Control Circuit Low Bank 2. The P0664 fault code would start appearing if there is an electrical error with the intake manifold tuning valve control circuit in bank 2.

What causes this problem with the Intake Manifold Tuning Valve Control Circuit Low Bank 2?

• Intake manifold tuning valve might have some faults
• Valve contamination
• There can be some issues in the wiring
• Smashed electrical connector
• Defective engine control module
• There can be some broken valve parts
• Issue of stuck valve
• Some quirks in the fuel injector control module

1. Intake Manifold Actuator - OBD Code P0664 can appear because of faulty Intake Manifold Actuator.
2. Idle Air Control Valve - There can be some issues with the Idle Air Control Valve due to which you may see P0664 code appearing over and over again. Visit us to buy best quality Idle Air Control Valve online.
3. Body Control Module - Are you facing some faults in your Body Control Module? Don’t worry and get them replaced or else P0664 code can turn up.
4. Engine Control Module - Common cause behind this P0664 error code can be some fault in Engine Control Module. So, it will be a good decision to replace them now.
5. Electronic Control Unit - Engine Control Module is perfectly fine but still but having that trouble code P0664 flashing? In such a situation your Electronic Control Unit might be faulty. Why don’t you think of getting that replaced?
6. Intake Manifold Gasket Set - The P0664 code can also arise due to some issues in Intake Manifold Gasket Set. So, it is advised to replace them as soon as possible.
7. Powertrain Control Module - P0664 code does not really end up spoiling your Body Control Module, but it might also accompany few powertrain control module issues. We have best powertrain related parts with us.

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P0664 here:

Common Symptoms

• Diminishing engine performance or acceleration
• Power range altered
• Illumination in the service engine soon lamp
• There can be some issues in starting the vehicle during the cold weather
• Noise coming from engine bay can be very loud
• Decline in the engine power
• Engine might start stalling
• There can be a possible misfire on start-up
• Less fuel economy

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 P0664:

• The ground wires or ground straps should be replaced properly
• If there are some faults in the fuel injector control module, then it should be restored properly
• Replace the PCM or CAN bus as per the requirement
• Make sure to reprogram the powertrain control module if it has some issues
• It is very important to replace the electrical components

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If you want to easily diagnose this trouble code, then you must follow the steps which are mentioned here as below:

• The P0664 code will be diagnosed using a standard OBD-II trouble code scanner
• The scanner will also be used to check for the presence of additional trouble codes, which will need to be addressed in the order in which they appear
• The trouble codes will then need to be reset, and the vehicle restarted, so the mechanic can see if the code remains detected. If not, then an intermittent error should be suspected, or possibly an erroneous trigger
• If the P0664 code remains detected, then the mechanic will begin by visually inspecting all of the electrical components in the system
• Loose or corroded connectors, open or shorted wires, and blown fuses will all need to be replaced
• The ground wire and ground strap should then be tested as well
• If the issue is unresolved, then the mechanic will then need to use a specialized CAN scanner to gather further information about the various control modules, and pinpoint where the error is coming from
• After any replacements are made, the mechanic will need to halt the inspection, clear the trouble codes, and restart the vehicle, to see if the code remains detected
• This will allow the mechanic to know as soon as the error has been fixed
• These types of codes are frequently caused by defective or disconnected system grounds
• An auxiliary ground cable can be helpful in diagnosing system ground discrepancies Engine and transmission ground cables, straps, and wires are sometimes left dangling after repairs are performed
• It is often much more frugal to replace defective wiring rather than attempting to remove it from the complex web of wiring harnesses

Common Mistakes When Diagnosing the P0664 Code

• The most commonly made error when diagnosing the P0664 code comes from a failure to properly abide by the OBD-II diagnosis protocol
• The technicians should keep in mind to follow the protocol, as it helps ensure an efficient diagnosis that is devoid of erroneous repairs