Powertrain, generic (extended)

P2230 Barometric Pressure Sensor A Circuit Intermittent/Erratic

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

P2230 flags a barometric pressure (BARO) signal that is electrically present but jumps or drops out for short moments instead of sitting permanently low or high. The engine computer uses BARO for air-charge, fuelling and boost calculations. Ford's 2020-2023 gasoline OBD summary lists P2230 with P2227-P2229 among the BARO faults that inhibit auto start-stop. GM bulletins for 2014-2017 trucks and SUVs with the 5.3/6.2 L V8 and for the 2012-2013 Equinox/Terrain 2.4 L trace P2230 to engine harness wires chafed through. Exact thresholds are not published. P2228/P2229 are steady low/high signals, P2227 a plausibility fault. Drivers usually notice only the warning light; start-stop may stay off.

Likely causes

Engine harness chafed against an engine component (e.g. vacuum pump pulley, cam cover)
Loose or corroded pin at the BARO sensor or ECM connector
Barometric pressure sensor with an internal contact problem

Symptoms

  • Check engine light, often coming and going
  • Auto start-stop inactive
  • Other sensor codes stored at the same time if a shared harness is damaged

Repair estimate

DifficultyMediumDIY possible
Parts and labour€40–300
Time0.5–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

barometric pressure sensorsensor wiringengine wiring harness

Related codes

P2227P2228P2229P0106

References: law.cornell.edu, static.nhtsa.gov, static.nhtsa.gov, fordservicecontent.com.