P2227 code meaning
Barometric Pressure Sensor A Circuit Range/Performance
Powertrain system Generic code P22xx codes Check engine light
What P2227 means
P2227 means the barometric reading is electrically fine but does not fit the other pressure signals. Ford's 2012 summary compares BARO, throttle inlet and manifold pressure after at least 10 s engine-off; the sensor that disagrees with the other two is blamed. While driving at low airflow BARO must stay within 5.5 inHg of throttle inlet pressure. Ford's 2023 diesels set P2227 for a reading below 50 kPa held for 1 s. GM's 2018 diesel tables run the same three-way check at idle and before start, plus a 50-115 kPa window, as Type B. GM bulletins 22-NA-007 (Cruze 1.4 turbo) and 23-NA-002 (Silverado/Sierra 2.7 L) trace P2227 with P0299 to ice in the charge air cooler; the fix is new ECM software plus a baffle.
P2227 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairAfter a drive cycle
Symptoms of P2227
- Check engine light
- Reduced power or hesitation in very cold weather on turbo engines
- P0299 or misfire codes stored alongside
Common causes of P2227
- Most likelyIce or sludge in the charge air cooler on turbo engines in severe cold (GM 22-NA-007, 23-NA-002)
- PossibleBARO sensor reading with an offset or drift
- PossibleFaulty boost or manifold pressure sensor that skews the comparison
- Less likelyEngine control software that needs an update
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Barometric pressure sensorSensor wiring
What each part of P2227 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 2 | Area: fuel and air metering (injector circuit). |
| 27 | The exact fault in that area. |
What to do next
- Note P2227 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2227
What does P2227 mean?
P2227 means "Barometric Pressure Sensor A Circuit Range/Performance". P2227 means the barometric reading is electrically fine but does not fit the other pressure signals. It is a generic code, so it means the same on every make.
Is it safe to drive with P2227?
Drive gently and only to a workshop. With P2227 the car can go into limp mode (reduced power) to protect itself.
Will P2227 fail an emissions test?
Yes, it can. P2227 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2227 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P2227 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.