P1017 - Valvetronic eccentric shaft sensor plausibility
OBD2 Error Codes

P1017 - Valvetronic eccentric shaft sensor plausibility

23.11.2023 /

P1017 – OBD-II Trouble Code Technical Description

Valvetronic eccentric shaft sensor reliability

What does the fault code mean P1017?

The Valvetronic system is an innovative valve lift control technology combined with a variable valve timing system, providing smooth control of the timing and duration of the intake valves. This system not only improves fuel economy and reduces emissions, but also eliminates the need for a throttle body in daily use.

Valvetronic is based on an eccentric shaft, which is controlled by the Valvetronic engine and is responsible for adjusting the lift of the intake valve. An eccentric shaft position sensor is used to provide feedback on the position of the eccentric shaft. Located under the valve cover on the cylinder head, this sensor ensures that the position of the Valvetronic eccentric shaft is consistent with factory settings.

If there is a discrepancy in the Valvetronic eccentric shaft sensor performance in relation to established standards, the system will issue a diagnostic trouble code (DTC).

Possible reasons

Possible causes of DTC P1017 include:

  1. Incorrect installation or malfunction of the reductor on the Valvetronic eccentric shaft sensor.
  2. Malfunction of the Valvetronic eccentric shaft sensor itself.
  3. Open or shorted wire in the Valvetronic eccentric shaft sensor harness.
  4. Poor electrical connection in the Valvetronic eccentric shaft sensor circuit.

Note: These causes do not exhaust all possible problems, and there may be other factors that lead to code P1017.

What are the symptoms of a fault code? P1017?

With DTC P1017, the following symptoms are possible:

  1. Loss of power: Improper operation of the Valvetronic system may result in poor engine performance resulting in loss of power.
  2. Erratic idle speed: Problems with valve timing can cause unstable idle speed.
  3. Increased fuel consumption: A malfunction of the Valvetronic system may result in inefficient combustion of fuel, which may increase fuel consumption.
  4. Ignition indicator Check Engine (Check Engine): When the P1017 code appears, the Check Engine light on the instrument panel will turn on.

It is important to note that symptoms may vary depending on the specific vehicle model and the extent of the Valvetronic system malfunction.

How to diagnose a fault code P1017?

To diagnose trouble code P1017, follow these general guidelines:

  1. Scanning error codes: Use a car scanner to read error codes from the ECU (Electronic Control Unit). Make sure code P1017 is present.
  2. Checking connections and wires: Visually check all electrical connections and wires associated with the Valvetronic eccentric shaft sensor. Make sure they are intact and not damaged.
  3. Resistance and Voltage Testing: Using a multimeter, check the resistance and voltage on the Valvetronic eccentric shaft sensor wires. Compare your values ​​to the manufacturer's recommended specifications.
  4. Checking the eccentric shaft sensor: Using a multimeter, check the resistance and voltage at the eccentric shaft sensor itself. Check if they match the expected values.
  5. Checking the relactor: If your vehicle has a reductor on the eccentric shaft sensor, make sure it is installed correctly and in good working order.
  6. Diagnostics of the Valvetronic system: Perform a comprehensive diagnosis of the Valvetronic system to identify problems with the mechanism and other components.
  7. Data chain test: Check the data circuit between the eccentric shaft sensor and the ECU for open or short circuit.
  8. Consultation with service manual: Refer to your vehicle's service manual for detailed test and diagnostic information specific to your model.

In case of difficulties or if you are not confident in performing the diagnosis, it is recommended that you contact a professional automotive technician.

Diagnostic errors

When diagnosing the P1017 trouble code, the following common errors may occur:

  1. Incorrect interpretation of code: Sometimes mechanics or vehicle owners may misinterpret the meaning of the P1017 code, which can lead to unnecessary replacements or repairs.
  2. Ignoring other problems: P1017 may be due to a faulty Valvetronic eccentric shaft sensor, but there may also be other problems in the Valvetronic system that may be missed during diagnosis.
  3. Replacement of components without prior testing: Some mechanics may immediately replace the eccentric shaft sensor or other components associated with a P1017 code without proper diagnosis, which can result in unnecessary expense.
  4. Incorrect installation or connection of new components: If components have been repaired or replaced, incorrect installation or connection of new parts may result in new problems.
  5. Skipping valve timing: Sometimes valve timing problems not directly related to the eccentric shaft sensor may be missed during diagnosis.

To avoid these mistakes, it is important to conduct a thorough diagnosis, use the correct tools, and follow the manufacturer's repair recommendations. If necessary, it is better to contact an experienced auto mechanic or service center.

How serious is the fault code? P1017?

Trouble code P1017, which is associated with the Valvetronic eccentric shaft sensor, can be relatively serious as it indicates problems with the engine's timing control system. Valvetronic is a system that affects valve lift, which in turn affects the timing and duration of opening of the intake valves.

A malfunction in this system can result in engine malfunction, poor performance, loss of power, increased fuel consumption and other problems. However, if the problem is ignored, it can also lead to more serious engine damage.

It is important to take into account that the impact of a P1017 code may vary depending on the specific model and make of the vehicle. To accurately assess the severity of the problem, it is recommended to conduct additional diagnostics and consultation with automotive service professionals.

What repair will help eliminate the code? P1017?

Resolving the P1017 code may require different repairs depending on the specific cause of the code. Below are general guidelines that may be required:

  1. Checking and replacing the Valvetronic eccentric shaft sensor: If the eccentric shaft sensor is faulty, it may require replacement. This is an important component that provides feedback to the Valvetronic system.
  2. Checking and repairing the rector: The retractor on the eccentric shaft sensor may be poorly installed or damaged. In this case, it will need to be checked and possibly corrected or replaced.
  3. Checking and repairing wires and circuits: If the eccentric shaft sensor wiring harness has opens, shorts, or other problems, it needs to be carefully inspected and repaired.
  4. Diagnostics of the Valvetronic system: Sometimes problems can be related to other components of the Valvetronic system, such as the Valvetronic motor or other elements of the valve control mechanism. Diagnosis and repair of these components may also be required.
  5. Clearing errors and resetting code: After performing repair work, it is important to clear errors and reset trouble codes using a diagnostic scanner.

It is important to note that in order to successfully resolve the problem and prevent the recurrence of the P1017 code, it is recommended that diagnostics and repairs be carried out using professional equipment and under the guidance of experienced auto mechanics.

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