OBD Guide

P2150

Fuel Injector Group B Supply Voltage Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Misfires
  • Check engine light is on

Causes

  • Damage to the wiring in the group B injector circuit
  • Blown fuse
  • Faulty injector relay
  • Problems with the engine control unit (ECU)
  • Poor contact in injector connectors

How to Fix

  1. Check the condition of the fuses and injector relays
  2. Inspect the wiring and connectors of group B injectors
  3. Check voltage at group B injectors
  4. Test injector resistance
  5. Replace damaged components if necessary

Related codes

Error P2150 by Vehicle Brand