P0107: Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Low
A generic powertrain (engine and transmission) trouble code, same meaning on every brand.
Driveable in fallback mode; expect poor running until fixed.
Symptoms
- Hard start, rough idle
- Stalling
- Very poor fuel economy
Likely causes, most common first
- MAP sensor unplugged or connector corroded
- Short to ground in the signal wire
- Failed MAP sensor
Read P0107 yourself before paying for diagnosis
A basic Bluetooth OBD-II scanner ($20-40) plugs into the port under the dashboard and shows this code with live sensor data on your phone - useful both for confirming the fix and for talking to a shop from an informed position.
What is going on and how it gets diagnosed
P0107 reports the MAP circuit stuck at low voltage - electrically implausible for a running engine, so the computer suspects the circuit rather than the reading. The engine keeps running on estimated load values.
This is one of the friendlier codes to chase with a multimeter: five minutes at the connector - checking the 5-volt reference, the ground, and the signal - localizes the fault to sensor or harness with certainty.
Repair options and cost
Typical US independent-shop ranges, parts and labor. Dealers run higher; regional labor rates vary.
Owner reports mentioning P0107
“Hev warning light came on when I started my car. I heard a sucking air sound at which time I turned off the car. I then restarted and no warning lights were on. Later that day while driving home the warning light came back on. I pulled the codes and it showed p0105 and p0107. Dealer inspected and found the egr pipe(c) separated from flange causing unmetered air leak. Repairs took from 09/26/18-10/02/18”2017 Hyundai Sonata · Sep 2018 · 4,854 mi
Cars that report P0107 most often
Based on mentions of this code in NHTSA owner complaints.
Frequently asked questions
Can I drive with P0107?
Driveable in fallback mode; expect poor running until fixed.
How much does it cost to fix P0107?
Typical US repair costs range from $60 for the simplest fix (connector or wiring repair) to $300 in the worst case. The right number depends on which cause your car has - see the causes list.
Definition per SAE J2012 standard nomenclature. Symptoms, causes and costs are editorial guidance - always confirm with a diagnosis of your specific vehicle.