OBD-II code · Powertrain (generic, extended)
P2EB1 Throttle Valve Intake Air Pressure Sensor Circuit Low
The ECM detects a circuit low fault on the throttle valve intake air pressure sensor circuit. Reading cannot be used reliably for control.
Is it safe to drive with P2EB1?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to ground
- PossibleInternal sensor short
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–2 h
- Emissions test
- Likely to fail
- Parts involved
- Throttle Valve Intake Air Pressure Sensor, Wiring Harness, Ecm
Related codes
- P2EAEReductant Injection Valve Circuit Range/Performance Bank 1 Unit 2
- P2EAFReductant Injection Valve Stuck Closed Bank 1 Unit 2
- P2EB0Throttle Valve Intake Air Pressure Sensor Circuit
- P2EB2Throttle Valve Intake Air Pressure Sensor Circuit High
- P2EB3Throttle Valve Intake Air Pressure Sensor Circuit Range/Performance
- P2EB4Hybrid/EV Battery Inductive Charger High Voltage Interlock Circuit/Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.