P0107 — Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
Drive with caution — fix soon.
What P0107 means
This code means the manifold absolute pressure (MAP) sensor circuit is sending a signal that's too low, often indicating a wiring short to ground, a disconnected sensor, or a vacuum hose problem. The engine computer can't gauge load correctly, which affects fuel mixing. It's a common code and is usually fixable by repairing wiring, reconnecting the vacuum line, or replacing the sensor.
Common symptoms
- Check engine light is on
- Rough or unstable idle
- Hesitation or lack of power
- Poor fuel economy or rich-running engine
- Hard starting or stalling
Common causes
- Wiring short to ground in the MAP sensor circuit
- Disconnected or unplugged MAP sensor
- Open or broken signal wire
- Disconnected or leaking vacuum hose
- Failed MAP sensor
Typical repair cost
$100 – $350
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0107 code?
For short trips, usually yes, but the engine may run rough or rich and could stall. Since the sensor reads too low, the computer mixes fuel incorrectly. Get it diagnosed soon.
How much does it cost to fix a P0107?
Most repairs run $100 to $350. A wiring or connector fix is on the lower end, while a new MAP sensor with labor sits a bit higher.
Is a P0107 code serious?
It's moderate. It won't usually cause immediate engine damage, but the low reading throws off fuel mixing and can cause stalling and poor performance if left unfixed.
What makes a P0107 low input happen?
A low signal usually means the circuit is shorted to ground, the sensor is unplugged, or a wire is broken. A mechanic checks the connector and wiring first, since those are common and cheaper than the sensor itself.