P2226 to P2230 and P2199: barometric pressure sensor and intake temperature correlation
The barometric pressure sensor has a circuit fault or an implausible, low, high or intermittent signal, or intake air temperature sensors 1 and 2 disagree (P2199).
SeverityModerateUsually not urgent today, but it can get worse if left.
Can you keep driving?Drive gently, check it soonWhat does P2226 mean?
Air is thinner at altitude and on hot days, so the engine computer measures the outside air pressure to correct the fuel, the ignition and, on turbo engines, the boost. On many cars the barometric sensor sits inside the engine computer or is combined with another sensor. P2199 is a plausibility check between two intake temperature sensors that should read almost the same when the engine is cold. A wrong barometric reading usually shows as poor running at altitude or limited boost.
What causes P2226?
- A failed barometric sensor, sometimes inside the engine computer
- A failed intake temperature sensor, for P2199
- A damaged wire or a corroded connector
- A blocked port where the sensor reads the outside air
What to check first for P2226
- With the engine off, compare the barometric and manifold pressure readings on a scan tool
- With the engine cold, compare both intake temperature readings
- Inspect the sensor connectors and wiring
- Check for a software update that refines the barometric pressure check
Can you drive with P2226?
Usually you can drive to a workshop. Expect weaker running at altitude or reduced turbo boost until it is fixed.
Clear a code only after the fault is fixed. A code that comes back means the cause is still there, and a warning light left on can hide a second fault behind the first.
Codes on this page
- P2199Intake Air Temperature Sensor 1 / 2 Correlation
- P2226Barometric Pressure Circuit
- P2227Barometric Pressure Circuit Range/Performance
- P2228Barometric Pressure Circuit Low
- P2229Barometric Pressure Circuit High
- P2230Barometric Pressure Circuit Intermittent
Related codes
Checked on · Rafael Soares
These are the generic meanings every manufacturer shares. Each brand adds its own detail, so your car's handbook, its service information and a qualified mechanic have the last word. OdoKeep has no connection with any manufacturer, and the app does not read codes from the car.
