P2EB1Throttle Valve Intake Air Pressure Sensor Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2EB1 says the pressure signal at the throttle inlet is below the lowest valid voltage. These sensors are linear: Ford's transfer curve gives about 0.4 V at 20 kPa and 4.5 V at 300 kPa, so a low voltage reads as an absurdly low pressure. A missing 5 V reference, a signal shorted to ground or a failed sensor are the usual causes. No manufacturer documents P2EB1; for the same sensor under the boost code P0237 GM's 2025 gasoline table 25OBDG03B sets a fault below 14.4 % of 5 V (about 50 kPa) in 320 of 400 samples taken every 12.5 ms, Type A, and Ford below 0.19 V for 5 s. Since boost control relies on this pressure, the engine may limit boost. P2EB2 is the opposite limit.
- What you may notice
- Check engine lamp, often after the first trip
- Noticeable loss of power under load
- Pressure reading far below ambient in live data
- Likely causes
- Likely5 V reference open or shorted, often shared with other sensors
- PossibleSignal wire shorted to ground
- PossiblePressure sensor failed
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Easy · Often possible to do yourself.Typical cost: €50 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.