P2EB2Throttle Valve Intake Air Pressure Sensor Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2EB2 is stored when the throttle inlet pressure signal exceeds its upper limit. Since voltage climbs with pressure, the module would read a boost no charger can deliver. Electrically this points to a signal wire touching the 5 V reference or battery voltage, or to an open sensor ground that lets the output float up. No manufacturer documents P2EB2 publicly. GM files the high fault of its TIAP sensor under P0238 and sets it above 85.8 % of 5 V, about 371 kPa, again 320 of 400 samples and Type A; Ford's throttle inlet sensor fails above 4.88 V for 5 s. GM's patent US8090522 shows that the throttle controller works directly with this pressure, sampled every 12.5 ms, so a wrong value disturbs throttle control. P2EB1 is the low limit.
- What you may notice
- Check engine lamp, often after the first trip
- Boost limited, sluggish response
- Pressure reading far above ambient with the engine off
- Likely causes
- LikelyOpen sensor ground or corroded ground pin
- PossibleSignal wire shorted to 5 V reference or battery voltage
- PossiblePressure sensor failed high
- 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.