P0107 Code: MAP Sensor Low — Causes & Fix
P0107 means the manifold absolute pressure (MAP) sensor signal is too low — often read as very high vacuum or an open circuit.
- Applies to
- All OBD-II vehicles (any make or model)
- Est. repair cost
- $30 – $350
- Time to fix
- 30 minutes – 2 hours
What it means
Usual causes are an open/short in the MAP wiring, a failed sensor, or a disconnected connector. P0107 is a generic OBD-II powertrain code defined in the SAE J2012 standard, so it applies to virtually any 1996-or-newer petrol car or light truck regardless of make. Fix the underlying fault, then clear the code with an OBD-II scan tool — it will return if the problem isn't resolved.
Symptoms
- Check engine light on
- Hard starting or stalling
- Rough running and reduced power
How to fix it
- 1
Inspect the connector and wiring
1. Reseat the MAP connector and check the reference, signal, and ground wires. 2. Repair breaks or shorts.
- 2
Replace the sensor if faulty
1. Test the sensor output against spec. 2. Replace it if the signal stays low, then clear the code.
Frequently asked questions
Can P0107 stop my car starting?
It can make starting difficult, because the ECM loses a key input for fuelling. Check the connector and wiring first.
Last updated July 19, 2026
Guidance only — always consult a qualified professional or the official service manual before carrying out repairs.