P1119: Manifold Absolute Temperature Circuit High Input

MediumPowertrainAir Flow Sensors

What does P1119 mean?

P1119 is a diagnostic trouble code indicating "Manifold Absolute Temperature Circuit High Input". The ECU is reading a voltage that is above the expected range. This can be caused by a short to power in the wiring, a failed sensor, or a connector issue in the air flow sensors.

Common causes

  • Damaged or corroded wiring harness
  • Loose or disconnected electrical connector
  • Failed air flow sensors sensor or actuator
  • Blown fuse in the related circuit
  • Poor ground connection

What should you do?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.

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Related codes

P1118Manifold Absolute Temperature Circuit Low Input
P1107Dual Alternator Lower Circuit Malfunction/ Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage
P1106Dual Alternator Lower Fault/ Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage
P1104MAF Ground Malfunction