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Faulty manifold pressure sensor

Measures pressure to optimize engine control and performance.

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Costs

Every car issue can be caused by different things. Here are the most common ones

Most Expensive

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Potential Causes

  • Spare parts
  • Work time
Moderate costs

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Potential Causes

  • Spare parts
  • Work time
Moderate costs

max.

Potential Causes

  • Spare parts
  • Work time
Cheapest case

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Potential Causes

  • Spare parts
  • Work time

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Discussions

User of our Carly Community asked the following questions regarding that fault:

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Probability

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high-probability

HIGH

Typical consequences

If this defect is detected, it may lead to the following problems:

  • Engine damage
  • Failure of the exhaust emission test (Failure to pass the exhaust emission test)

Function of intake manifold pressure sensor

The intake manifold pressure sensor is found in electronic engine control systems in fuel-injected engines. It continuously measures the intake manifold pressure in the intake tract and sends data to the engine control unit. From this, the air density and the air volume are calculated, which are used to determine the fuel delivery for optimum combustion.

Sensors such as MAF or pressure sensors are used, sometimes both. The intake manifold pressure sensor is also used for diagnostics by measuring the performance of the throttle valve and turbocharger and detecting leaks. Normally, it indicates negative pressure unless the turbocharger increases the pressure.

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