P2227 on Chevrolet
Barometric Pressure Sensor "A" Circuit Range/Performance
P2227 on Chevrolet vehicles indicates barometric pressure sensor "a" circuit range/performance. Au7o has documented this code across 1 Chevrolet model — most commonly on Equinox. Generic code. The barometric pressure sensor 'A' is connected but its reading is out of range or doesn't track expected atmospheric pressure — the value is absent, inconsistent, or implausible versus other pressure sensors and known altitude. Typical repair costs on Chevrolet range from $150 to $600, depending on the specific model and root cause.
Common Causes of P2227
- •Drifting/aging BARO or MAP sensor
- •Vacuum or pressure reference problem
- •High-resistance wiring/connector
- •Sensor contamination
- •Intermittent reference voltage
P2227 on Chevrolet by Model
Chevrolet Equinox(1 issue)
- 1.5L Turbo Charge Air Cooler (Intercooler) Condensation Restricting Airflow — Underboost / Reduced Engine Power2018-2022
On 1.5L turbo (LYX) Equinox models, moisture accumulates inside the charge air cooler (intercooler) and, in cold or highly humid weather, can freeze or pool enough to severely restrict intake airflow. This trips turbo underboost/MAP faults and pushes the engine into 'Engine Power Reduced' limp mode with sluggish acceleration. A related GM TSB also documents the charge air cooler outlet tube separating from the throttle body on 2018-2022 1.5L turbo models, producing the same reduced-power symptom. This is distinct from the known coolant-loss/intercooler-condensation head-gasket issue — here the failure is airflow restriction and boost loss, not coolant consumption.
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View P2227 across all makes →Frequently Asked Questions
What does P2227 mean on Chevrolet?▼
P2227 stands for "Barometric Pressure Sensor "A" Circuit Range/Performance." Generic code. The barometric pressure sensor 'A' is connected but its reading is out of range or doesn't track expected atmospheric pressure — the value is absent, inconsistent, or implausible versus other pressure sensors and known altitude. On Chevrolet specifically, this code is documented across 1 model.
What causes P2227 on Chevrolet vehicles?▼
Common causes on Chevrolet: Drifting/aging BARO or MAP sensor, Vacuum or pressure reference problem, High-resistance wiring/connector, Sensor contamination, Intermittent reference voltage. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P2227 on a Chevrolet?▼
Repair costs on Chevrolet range from $150 to $600, depending on the specific model and root cause.
Which Chevrolet models have P2227 documented?▼
Au7o has documented P2227 on 1 Chevrolet model: Equinox.