What Does the P0106 Code Mean?

The P0106 code is a mouthful: “Manifold Air Pressure (MAP) Barometric Pressure Sensor Electrical Circuit Output Range and Performance Problem.” Sounds complicated, right? But it boils down to a straightforward issue.

The MAP sensor keeps tabs on the air pressure in the intake manifold, which tells the engine how hard it’s working. When the accelerator gets pressed, more air comes in, and the sensor relays that info to the Powertrain Control Module (PCM). The PCM then adjusts the fuel injection and ignition timing accordingly.

In short, if the MAP sensor is acting up, the PCM can’t do its job properly, leading to performance issues.

What’s Wrong with the MAP Sensor?

When the P0106 code pops up, it usually points to a problem with the MAP sensor itself. It might be faulty, clogged with debris, or affected by moisture. Sometimes, the connection to the sensor can go bad, too.

Another possibility? A significant leak in the intake manifold could throw off the air pressure readings. In that case, the PCM thinks the sensor is the issue, but it’s really the manifold that’s the culprit.

Signs of a P0106 Code

First off, the Check Engine light will be on. But that’s just the tip of the iceberg. Here are some other symptoms to look out for:

• Sluggish acceleration and low power
• Rough engine performance
• Possible stalling, especially at idle
• Poor fuel economy
• Excessive exhaust smoke

How to Fix the P0106 Code

In most cases, swapping out the MAP sensor is the way to go. It’s usually just a matter of disconnecting the old one and plugging in a new one.

If someone’s feeling adventurous, they might try to diagnose the old sensor. But more often than not, that’s a rabbit hole that leads to more headaches.

If the issue is a crack in the intake manifold, that’ll need replacing too. Strong duct tape might hold it together temporarily, but it’s not a long-term fix.

Cost of Fixing the P0106 Code

Replacing a MAP sensor typically runs between $50 and $100. Add another $50 for labor, and the total comes to about $100 to $150.

If the air intake pipe is the issue, expect to pay between $50 and $125. For a full intake manifold replacement, costs can vary widely—plastic ones might be $50 to $100, while metal ones can hit $500 or more. Factor in labor, and the total could range from $250 to $800, depending on the vehicle.

Check Engine Light Still On After Fixing?

After replacing the sensor or manifold, a technician should clear the stored codes. If doing it at home, make sure to use a quality OBD II reader—cheap ones can cause more harm than good.

Once the codes are cleared, the Check Engine light should turn off. If it comes back, it’s time to dig deeper or consult a pro.

Kia/Hyundai and the P0106 Code

For those rolling in a Kia or Hyundai (especially models from 2008 to 2015), there’s a quirk to keep in mind. Sometimes, disconnecting or draining the battery can trigger the P0106 code, but it’s usually a false alarm. If the code doesn’t come back after a few starts, it’s likely nothing to worry about.