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2019 FORD F-150
3.5L V6 EcoBoost•RWD•AUTOMATIC•gas•turbo
9 active safety recalls on this vehicle — view recalls
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Repairs418Labor1009Torque7006Fluid18DTC3214Battery2Maintenance0Recalls9
P0129low severityPowertrain

Barometric Pressure Too Low

on 2019 Ford F-150 3.5L V6 EcoBoost · RWD

What this code means

The barometric pressure sensor is reporting a value that is lower than expected. This affects fuel and timing calculations.

Symptoms

  • Check engine light on
  • Poor fuel economy
  • Hesitation or rough running

Common causes

  • Faulty barometric pressure sensor
  • Vacuum leak affecting MAP reading
  • Wiring or connector fault
  • Faulty PCM

Diagnostic steps

  1. Read barometric pressure value with scan tool
  2. Compare to known local barometric pressure
  3. Inspect sensor wiring and connector
  4. Replace sensor if faulty
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