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2002 CHEVROLET EXPRESS

6.0L V8 VortecRWDAUTOMATICgas
Repairs0Labor593Torque4889Fluid7DTC745Battery1Maintenance0Recalls0
P0045moderate severityPowertrain

Turbo/Supercharger Boost Control Solenoid Circuit/Open

on 2002 Chevrolet Express 6.0L V8 Vortec · RWD

What this code means

The PCM detected an open circuit in the turbocharger or supercharger boost control solenoid.

Symptoms

  • Check Engine Light
  • Loss of boost pressure
  • Reduced power
  • Limp mode

Common causes

  • Faulty boost control solenoid
  • Wiring damage
  • PCM failure
  • Corroded connector

Diagnostic steps

  1. Test solenoid resistance
  2. Inspect wiring
  3. Check vacuum lines
  4. Command solenoid with scan tool

Repair notes

Replace boost control solenoid or repair wiring.

Other Powertrain codes on this vehicle

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