P01BEFuel Rail Pressure Sensor Circuit Bank 2
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- The bank 2 rail pressure sensor measures the pressure in a second, separate high-pressure rail on V engines that have one rail with its own sensor per bank. Many V engines connect both rails and use only one sensor (P0190–P0194); the only documented user of the bank 2 codes is GM's 5.5 litre LT6 (Corvette Z06 2023–2024) with a digital sensor per rail. P01BE is the general circuit fault of the bank 2 sensor, the counterpart of P0190. No manufacturer document using exactly this code was found; the logic follows the bank 1 sensor and CARB's circuit monitoring requirement. On a fault the module uses a substitute value and usually limits power.
- What you may notice
- Check engine light on
- Limp mode or 'Reduced Engine Power'
- Rough running
- Likely causes
- LikelyConnector or harness of the bank 2 sensor corroded or wet
- PossibleBank 2 rail pressure sensor faulty
- Possible5 V reference or ground disturbed
- RareControl module
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €80 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.