OBD Guide
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P0108

Manifold Absolute Pressure/Barometric Pressure Sensor Circuit High

P0108 is an OBD-II diagnostic trouble code meaning: Manifold Absolute Pressure/Barometric Pressure Sensor Circuit High. Common causes: map sensor malfunction, damaged map sensor wiring or connector. Estimated repair cost: $6–89.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$6–89 (est.)

Symptoms

  • Unstable engine operation at idle
  • Increased fuel consumption
  • Reduced engine power
  • Difficulty starting the engine
  • Rough engine operation under load
  • Check Engine Light Is On
  • Possible jerking when accelerating

Causes

  • MAP sensor malfunction
  • Damaged MAP sensor wiring or connector
  • Short circuit in the sensor circuit to +12V
  • Clogged vacuum line to the sensor
  • Engine ECU malfunction
  • Mechanical damage to the intake manifold
  • Incorrect sensor installation or calibration

How to Fix

  1. Connect a diagnostic scanner and read all error codes
  2. Check MAP sensor readings in real time
  3. Inspect the MAP sensor for external damage
  4. Check the integrity of the sensor connector and wiring
  5. Measure the sensor supply voltage (should be 5V)
  6. Check the vacuum line for blockages and damage
  7. Replace MAP sensor if necessary
  8. Clear error codes and test drive
  9. Recheck for errors after repair

Related codes

P0105P0106P0107P0109P0171P0172

Error P0108 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0108 code mean?

P0108 is an OBD-II diagnostic trouble code that indicates: Manifold Absolute Pressure/Barometric Pressure Sensor Circuit High

What causes a P0108 error code?

The most common causes of P0108 include: MAP sensor malfunction; Damaged MAP sensor wiring or connector; Short circuit in the sensor circuit to +12V; Clogged vacuum line to the sensor.

How do I fix a P0108 diagnostic trouble code?

To fix P0108: Connect a diagnostic scanner and read all error codes. Check MAP sensor readings in real time. Inspect the MAP sensor for external damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0108?

Do not drive — repair immediately

How much does it cost to fix P0108?

The estimated repair cost for P0108 is $6–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat