P0107 on Honda: How to Diagnose & Fix
Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
1 Honda model · 1 documented issue · $40-$180 repair
P0107 on Honda by model: symptoms, diagnosis and fix
The manifold absolute pressure (MAP) sensor mounted on the throttle body of 1.6L D16 Civics commonly fails as it ages, losing the ability to hold vacuum or drifting out of its 0.5-4.5V calibration range. Because the PCM uses MAP voltage as the primary load input on these speed-density systems, a failing sensor causes the ECU to mis-fuel and mis-time the engine. Failures often set P0107 / P0108 / P1128 / P1129 codes and frequently coincide with cracked vacuum hoses on the upper intake.
Common Symptoms
- Check engine light with P0107, P0108, P1128 or P1129
- Rough idle and stumbling
- Hesitation and loss of power under load
- Rich-running condition and rotten-egg smell from catalyst
- Hard cold starts and emissions test failure
How to Fix
Verify the vacuum supply hose at the throttle body is not cracked or off, then back-probe the MAP sensor signal wire: at key-on engine-off it should read ~2.8-3.0V (atmospheric), dropping to ~1.0-1.5V at idle. If voltage is stuck high, stuck low, or doesn't track manifold vacuum, replace the MAP sensor (Honda P/N 37830-P05-A01 or equivalent). Clear codes and re-test; persistent codes after replacement usually indicate a vacuum leak.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Honda 37830-PAA-S00 MAP sensor setOEMHonda 37830-PAA-S00 (replaces 37830-P0G-S00)
MAP sensor replacement after reference, ground, vacuum passage and signal-response tests prove sensor failure Fitment/availability: Honda catalog fitment covers 1996-2000 Civic DX/EX/HX/Si/CX/GX/LX branches and supersedes 37830-P0G-S00. …
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Sources for this issue (3)
P0107 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0107 mean on a Honda?
P0107 stands for "Manifold Absolute Pressure/Barometric Pressure Circuit Low Input." The PCM detects an abnormally low voltage signal from the MAP (or barometric pressure) sensor circuit, below the minimum expected threshold. This usually points to a wiring or sensor fault rather than a true pressure reading. Drivers may experience hard starting, rough idle, poor fuel economy, and stalling. On Honda it is documented across 1 model: Civic.
What are the most common causes of P0107?
The most common causes of P0107 are: Faulty MAP sensor, Open or short to ground in the MAP signal wire, Poor or corroded connection at the MAP sensor, Damaged or disconnected reference voltage circuit, Bad sensor ground, Failed PCM (rare). The specific cause varies by vehicle.
How much does it cost to fix P0107 on a Honda?
Published repair estimates on Honda range from $40 to $180 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0107 on a different make?
View P0107 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.