Powertrain, generic · Fuel and air metering

P01BE Fuel Rail Pressure Sensor Circuit Bank 2

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

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.

Likely causes

Connector or harness of the bank 2 sensor corroded or wet
Bank 2 rail pressure sensor faulty
5 V reference or ground disturbed
Control module

Symptoms

  • Check engine light on
  • Limp mode or 'Reduced Engine Power'
  • Rough running

Repair estimate

DifficultyMediumDIY possible
Parts and labour€80–700
Time0.5–3.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

fuel rail pressure sensor bank2sensor wiringsensor reference voltage

Related codes

P01BFP01C0P01C1P01C2P0190

References: law.cornell.edu, gsi.ext.gm.com, static.nhtsa.gov.