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Home/DTC Codes/Mitsubishi/Eclipse/2004-2004 3.0L V6/P0109
P0109

MAP/BARO Pressure Circuit Intermittent

2004-2004 Mitsubishi Eclipse 3.0L V6

Moderate SeverityPowertrainGeneric (SAE)

The 2004 Mitsubishi Eclipse is equipped with a 3.0L V6 engine. Below you'll find detailed p0109 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.

Description

The MAP sensor signal is showing intermittent readings.

Symptoms

  • Check Engine Light (intermittent)
  • Erratic idle
  • Stumble on acceleration

Common Causes

  • Loose connector
  • Damaged wiring
  • Intermittent vacuum leak

Diagnostic Steps

  1. Wiggle test on connector
  2. Monitor MAP signal
  3. Check vacuum hose

Repair Notes

Repair connector or wiring.

Related Codes

P0105Manifold Absolute Pressure/BARO Circuit

Other Powertrain Codes

P0109 on Other Vehicles

Mitsubishi 3000GT

1996-1996 3.0L V6 Twin Turbo

Mitsubishi 3000GT

1997-1997 3.0L V6 Twin Turbo

Mitsubishi 3000GT

1998-1998 3.0L V6 Twin Turbo

Mitsubishi 3000GT

1999-1999 3.0L V6 Twin Turbo

Mitsubishi Colt JP

2002-2002 1.3L I4 4A90

Mitsubishi Colt JP

2002-2002 1.5L I4 4A91

Mitsubishi Colt JP

2003-2003 1.3L I4 4A90

Mitsubishi Colt JP

2003-2003 1.5L I4 4A91

Common Questions

What does code P0109 mean on a 2004-2004 Mitsubishi Eclipse?

P0109 stands for "MAP/BARO Pressure Circuit Intermittent". The MAP sensor signal is showing intermittent readings.

What are the symptoms of P0109 on a Mitsubishi Eclipse?

Common symptoms of P0109 include: Check Engine Light (intermittent), Erratic idle, Stumble on acceleration.

What causes P0109 on a 2004-2004 Mitsubishi Eclipse?

Common causes of P0109 include: Loose connector, Damaged wiring, Intermittent vacuum leak.

Last updated: March 2026

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