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Code P2017. Intake Manifold Actuator Position Sensor/Switch Circuit, Bank 1

The P2017 code is defined as: Intake Manifold Actuator Position Sensor/Switch Circuit, Bank 1. This fault is usually caused by a short to positive with the intake manifold air control actuator position sensor.

This diagnostic trouble code is a generic powertrain code, which means it is applicable to cars with the OBD-II system. Specific repair steps may vary as it depends on the make and model of the vehicle.

This code also activates the light “Check Engine” on your dashboard.

Intake Manifold Actuator Valve Operation

valve actuator The intake manifold is a second throttle body throttle plate for the air intake system, which is designed to optimize the engine’s air-fuel ratio.

This valve will open or close to allow air to enter the engine faster or slower.

If the engine is picking up speed from a stop position, the valve will close the flap slightly, allowing air to enter the engine faster and at the same time allowing the vehicle to gain speed faster, restricting fuel consumption. fuel.

As the RPM increases, the engine will draw in more air, and eventually, the advantage of the slightly closed fins will hinder engine performance, rather than help. If this happens, the flap will open a little more.

The flap closes at a lower speed since the RPM is low and less air enters the engine. The intake manifold has several large ports that can take a long time to fill due to their large size.

The faster the manifold fills with air, the faster the vehicle accelerates, which also means better fuel economy.

However, it is scientifically proven that air moves faster through smaller spaces than larger areas.

To take advantage of this, there are electronically controlled flaps designed to make some intake manifolds fill more quickly and draw air into the combustion chamber faster.

The flap will open or close depending on the current needs of the engine. If the P2017 error code is set, it means that there is a problem in the operation of the engine flaps, which are controlled by the manifold actuator valve.

You may also be interested in Error Code P2008 – Intake manifold slide control circuit/open bank 1

What is the P2017 Code?

Intake manifold actuator valve It works by controlling the volume of air entering the intake manifold. The manifold has a flap that is controlled by this valve and opens and closes depending on the engine’s air requirements.

If fault code P2017 is set, this means that the valve is not opening or closing as required by the PCM. The correlation between the PCM and the manifold actuator valve is out of sequence.

If the engine control module detects a variation in voltage coming from the intake manifold actuator position sensor, it stores the P2017 fault code. This would result in the check engine light on your dashboard flashing.

Common Symptoms of Code P2017

As with other error codes, this code activates the check engine light and registers the code in the vehicle system. Other symptoms include:

  • Poor acceleration.
  • Increase in fuel consumption.
  • The check engine light comes on.
  • Decrease in engine performance.

Possible Causes of Code P2017

There are many possible causes for the flap to get stuck when opening or closing, which leads to the error code. Some of the main causes include:

  • Dirty intake manifold.
  • Dirty and stuck intake manifold control valve.
  • Leaking intake manifold gasket.
  • Vacuum leak.
  • Dirty air filter.
  • Faulty intake manifold.
  • Damaged intake control solenoid.
  • Electrical circuit shorted or open.
  • The electrical circuit may have an improper electrical connection.
  • There may be an inoperative ECM.

How to Diagnose the P2017 Code

Let’s see the steps necessary to carry out a good diagnosis of the P2017 code.

1. Inspect the wiring

Diagnosis should begin with a visual inspection of the system wiring and connector. An open circuit can occur due to corrosion in the IMRC actuator connectors, so it is essential to pay attention to these.

You should check for burned, broken cables or damaged connections. This failure is common due to the high temperatures recorded in this area of ​​the engine.

2. Scan the vehicle

You must use a scanner to note the freeze frame data, to gather details about the code. This way you can also check for the presence of additional trouble codes.

Now, if there are a number of codes, they must be addressed in the same order that they appear on the scanner. After that, you must reset the fault codes, and perform a test on the vehicle to verify that the code activates again.

If not, it is likely that the code was activated incorrectly or represents an intermittent problem.

3. Check the intake manifold

To perform this check, you must remove the intake manifold and check for carbon buildup and other defects. You must review:

  1. If there is dirt in the collector.
  2. If there is dirt on the actuator vane.
  3. If there are vacuum leaks at the manifold gaskets.
  4. If there is dirt in the MAP sensor.
  5. If the air filter is dirty.

All these components must be clean and in good condition. There are some additional diagnostic notes to keep in mind. Check the IMR flap for binding with the actuator disconnected from the shaft.

The screws or rivets that secure the fins to the shaft can loosen or fall off and cause the fins to bind. Clogging can also be caused by carbon coking within the walls of the intake manifold.

Therefore, everything must be clean.

4. Perform a check of the actuator and sensor

A Multimeter should be used to perform a resistance test on the actuator and position sensor.

If the actuator or position sensor does not meet the specifications set by the manufacturer, the defective parts must be replaced and then the entire system must be retested once again.

5. Perform a circuit continuity check

If the actuator resistance and sensor resistance meet the specifications set by the manufacturer, the multimeter should be used to check the resistance and continuity in all system circuits.

You can always avoid controller damage; This can be done by disconnecting all related drivers before testing. Repairs or restores shorted or open circuits as required.

How to Repair Code P2017

Common fixes for this code are easy to do, but of course require a full diagnosis. Some of the repairs include:

  1. Thorough cleaning of the intake manifold.
  2. Cleaning the mass air flow sensor.
  3. Replace faulty intake manifold control solenoid.
  4. Repair of wiring damage in the intake manifold slide circuit.
  5. Repair shorts in the intake manifold actuator circuit wiring.
  6. Vacuum leak repair.
  7. Replacing the dirty air filter.

Some Components To Replace To Repair Code P2017

  1. Electronic control unit: The ECU monitors temperature differences in the converter with the help of temperature sensors to prevent the converter from overheating and malfunctioning. If the ECU fails, it may generate a P2017 code.
  2. Engine control module: PCM faults can be very difficult to find and resolve as they are very rare and may require a complete reprogramming of the system.
  3. Intake manifold actuator: The intake manifold trim valve actuator is used to regulate air flow in an intake manifold of an internal combustion engine. The actuator includes a motor, a control circuit and a sensor, all mounted in a housing that has an opening through which an output shaft extends.
  4. Intake manifold: When the intake manifold fails, it can leave the engine without increased performance and, in some cases, even reduced performance. Typically, a faulty intake manifold will produce some symptoms that can alert the driver to a possible problem.
  5. Throttle position sensor: A throttle position sensor (TPS) is a sensor used to monitor the position of a vehicle’s throttle. The sensor is usually located on the throttle spindle/shaft so it can directly monitor the throttle position.

Common Errors When Diagnosing The P2017 Code

One of the common errors in this failure is to change a component without really verifying the cleanliness in the actuator area. Many times a deep cleaning of the intake manifold and changing the air filters is enough.

You must rely on a good diagnosis to decide to change any component of your car.

How to Avoid Code P2017?

If the code appears due to jamming of the actuator vane due to dirt, this could have been avoided by keeping an eye on the cleaning and changing of the air filter.

However, not all cases are avoidable, and the code may appear due to the useful life of the components, or due to abuse of operating conditions.

Is Code P2017 Serious?

Not really. When this code is activated you will notice a decrease in engine performance, but the car can be driven in these conditions.

Only in extreme cases, where acceleration is so poor that the car goes into Emergency Mode, will you need immediate intervention.

However, our recommendation is that you diagnose and repair the code as soon as it is activated, without allowing too much time to pass.


You may also be interested in Error Code P2006 – Intake manifold slide control stuck in bank 1

Error code P2017 It is not a serious problem and may not cause serious damage to your engine. However, because it activates the Check Engine light, you will not legally pass the emissions inspection until this issue is resolved.

As one of its symptoms may be delayed or poor acceleration of the car, it can directly affect driving, since the engine response is not as usual.

Remember to carry out the diagnosis and base the repairs on its results.

If you want to know other articles similar to Code P2017. In Intake Manifold Actuator Position Sensor/Switch Circuit, Bank 1 you can visit the category Fault Codes.


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