P0107: Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Low
What to do
Expect weak running and possible stalling. If several sensor codes appeared at the same time, mention it — that pattern points at a shared supply fault.
What this code means
The manifold pressure signal is below its valid range, normally a short to ground or an open reference supply. Because the module reads very low pressure as very low load, it cuts fuelling accordingly and the engine runs lean and weak. Check the sensor's five-volt reference before condemning the sensor — a shorted reference wire can take several sensors down at once, which is a useful clue when multiple codes appear together.
Likely causes
Start here
- Wiring shorted to ground · moderate
- Faulty manifold absolute pressure sensor · easy
- Failed sensor reference voltage supply · moderate
Less common
- Corroded or loose connector · easy
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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