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Home/DTC Codes/Nissan/Altima/2007-2012 2.5L I4/P0103
P0103

Mass Air Flow (MAF) Circuit High Input

2007-2012 Nissan Altima 2.5L I4

Moderate SeverityPowertrainGeneric (SAE)

Description

The MAF sensor signal voltage is higher than the maximum expected value.

Symptoms

  • Check Engine Light
  • Lean fuel condition
  • Poor acceleration
  • Engine surge

Common Causes

  • Faulty MAF sensor
  • Short to voltage in signal wire
  • Water damage to sensor

Diagnostic Steps

  1. Check MAF sensor connector
  2. Test signal voltage
  3. Inspect wiring for shorts to power
  4. Test sensor output

Repair Notes

Replace MAF sensor or repair wiring.

Related Codes

P0100Mass Air Flow (MAF) CircuitP0101Mass Air Flow (MAF) Circuit Range/PerformanceP0102Mass Air Flow (MAF) Circuit Low Input

Other Powertrain Codes

P0103 on Other Vehicles

Nissan 200SX

1995-1998 1.6L I4 GA16DE

Nissan 200SX SE-R

1995-1998 2.0L I4 SR20DE

Nissan 240SX

1995-1998 2.4L I4 KA24DE

Nissan 300ZX

1990-1996 3.0L V6 VG30DE

Nissan 300ZX Twin Turbo

1990-1996 3.0L Twin-Turbo V6 VG30DETT

Nissan 350Z

2003-2006 3.5L V6 VQ35DE

Nissan 350Z

2007-2009 3.5L V6 VQ35HR

Nissan 370Z

2009-2020 3.7L V6 VQ37VHR

Common Questions

What does code P0103 mean on a 2007-2012 Nissan Altima?

P0103 stands for "Mass Air Flow (MAF) Circuit High Input". The MAF sensor signal voltage is higher than the maximum expected value.

What are the symptoms of P0103 on a Nissan Altima?

Common symptoms of P0103 include: Check Engine Light, Lean fuel condition, Poor acceleration, Engine surge.

What causes P0103 on a 2007-2012 Nissan Altima?

Common causes of P0103 include: Faulty MAF sensor, Short to voltage in signal wire, Water damage to sensor.

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