OBD-II Code · Sensors
P0107
MAP Sensor Circuit Low Input
Severity
medium
Worth booking. It costs fuel, emissions or comfort until it is fixed.
Can you drive it
Only if running normally
A short trip to a shop may be reasonable if the light is steady and the car runs normally. Stop safely for a flashing light, severe shaking, overheating, loss of power, or another urgent warning. The code alone cannot confirm safety.
Indicative cost (USD)
$80–$250
Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
MAP sensor reading too low.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then work the likely-causes list in the order shown.
That order is what a shop checks first for this code — wiring and connections before the component they run to, because a connector costs nothing to inspect and is a common answer.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
- Stalling
- Hesitation
Likely causes
- Failed MAP sensorMost common
- Disconnected sensor
- Wiring short to ground
Read the full diagnostic procedureP0107 means MAP signal voltage is below the floor — typically under 0.2V on a 1-bar sensor or under 0.3V on a 3-bar sensor key-on engine-off.
P0107 means MAP signal voltage is below the floor — typically under 0.2V on a 1-bar sensor or under 0.3V on a 3-bar sensor key-on engine-off. With the engine off, MAP must read atmospheric pressure (95-101 kPa, voltage 4.5-4.8V on a 1-bar sensor, 1.4-1.6V on a 3-bar sensor) — anything under that is either a wiring fault or a dead sensor reporting vacuum that does not exist.
Cheapest-first ladder
- unplug the MAP connector and back-probe the 5V reference key-on, must be 4.9-5.1V (if the 5V reference is missing, check for a shorted sensor on the same 5V bus dragging the rail down — TPS, ECT, and MAP often share one 5V reference); verify ground continuity at the sensor connector, under 0.1V drop to battery negative; with the connector unplugged and key on, scan-tool MAP voltage should jump to 5V (open-circuit pulled high by ECM) — if it stays at 0V, the signal wire is shorted to ground somewhere in the harness; if voltage goes to 5V with the sensor unplugged but reads 0V with it plugged in, the sensor is internally shorted and needs replacement.
- P0107 with a properly powered and grounded sensor is almost always a failed sensor, but the $40 of diagnostic time to verify saves replacing a $80-$300 part that was not the actual fault.
Vehicle-specific patterns2008-2014 VW/Audi 2.0T TSI sees P0107 from the integrated MAP/IAT sensor failing internally with the MAP element shorting low — this is a well-docume…
- 2008-2014VW/Audi 2.0T TSI sees P0107 from the integrated MAP/IAT sensor failing internally with the MAP element shorting low — this is a well-documented platform-wide failure around 80k miles and the only fix is replacement;
- 2007-2013GM 5.3L sees P0107 when the under-intake MAP gets soaked with coolant from a leaking intake gasket and the moisture shorts the sensor signal to ground;
- 2007-2018Cummins 5.9L/6.7L Ram sees P0107 from severe soot loading of the MAP sensor in the intake horn where the soot bridges the signal pin to housing ground;
- 2005-2010Chrysler/Jeep Hemi sees P0107 from a chafed MAP signal wire at the throttle body bracket grounding to the intake.
Estimated repair$40 to $400.
Look up another code
P0107 — frequently asked
What does a P0107 code mean?
MAP sensor reading too low.
What causes a P0107 code?
Common causes: Failed MAP sensor; Disconnected sensor; Wiring short to ground.
What are the symptoms of a P0107 code?
Typical symptoms: Check engine light; Stalling; Hesitation.
Is it safe to drive with a P0107 code?
Only if running normally. A short trip to a shop may be reasonable if the light is steady and the car runs normally. Stop safely for a flashing light, severe shaking, overheating, loss of power, or another urgent warning. The code alone cannot confirm safety. Estimated repair: $80-$250.
How do I diagnose a P0107 code?
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed. 1. Note every code that is set, not just this one. 2. Read the freeze frame — the conditions the fault was recorded under. 3. Confirm the fault is current rather than history. 4. Then work the likely-causes list in the order shown.
More free tools