SensorsModerate✅ DIY Friendly

P0107

Q: What does OBD2 code P0107 mean?

P0107 means: MAP Sensor Circuit Low Input. The ECM has detected that the Manifold Absolute Pressure (MAP) sensor signal voltage is lower than the expected operating range, which the ECM interprets as an implausible low-vacuum or low-pressure reading.

MAP Sensor Circuit Low Input

The ECM has detected that the Manifold Absolute Pressure (MAP) sensor signal voltage is lower than the expected operating range, which the ECM interprets as an implausible low-vacuum or low-pressure reading.

SeverityModerate

CategorySensors

Est. Repair Cost$30–$200

Code TypePowertrain

DIY RepairYes

⚡ Common Causes

›Vacuum leak at MAP sensor
›Open circuit in signal wire
›Failed MAP sensor
›Loose sensor connector

⚠️ Symptoms

›Rough idle
›Hard starting
›Black smoke
›Check engine light

✅ How to Fix — Step by Step

Step 1:Inspect MAP sensor vacuum hose
Step 2:Check sensor connector
Step 3:Test sensor voltage
Step 4:Replace MAP sensor

🔧 Diagnostic Tools Required

✔OBD-II Diagnostic Scanner
✔Digital Multimeter
✔Basic Hand Tools
✔Flashlight
✔Vehicle Service Manual

Using the correct diagnostic tools helps identify the root cause of P0107 before replacing parts unnecessarily. Always confirm the fault using live data and manufacturer-recommended diagnostic procedures.

💡 Pro Tip: Check the vacuum hose to the MAP sensor for cracks or splits before replacing the sensor — a leaking hose gives the same low-voltage symptom as a failed sensor.

Frequently Asked Questions

What does OBD2 code P0107 mean?+

P0107 stands for MAP Sensor Circuit Low Input. The ECM has detected that the Manifold Absolute Pressure (MAP) sensor signal voltage is lower than the expected operating range, which the ECM interprets as an implausible low-vacuum or low-pressure reading.

What causes code P0107?+

Vacuum leak at MAP sensor; Open circuit in signal wire; Failed MAP sensor; Loose sensor connector

How do I fix code P0107?+

Inspect MAP sensor vacuum hose; Check sensor connector; Test sensor voltage; Replace MAP sensor

How much does it cost to fix P0107?+

Estimated repair cost for P0107 is $30–$200.

Is P0107 DIY-friendly?+

Yes — P0107 is generally DIY-friendly with basic tools.