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2007 LEXUS GS 300

3.0L V6RWDAUTOMATICgas
Repairs0Labor498Torque2471Fluid7DTC855Battery0Maintenance0Recalls0
P1510high severityPowertrain

Boost Pressure Control Circuit

on 2007 Lexus GS 300 3.0L V6 · RWD

What this code means

The ECM detected a fault in the boost pressure control circuit on turbo engines.

Symptoms

  • CEL
  • Overboosting
  • Underboosting
  • Reduced power
  • Engine knock

Common causes

  • Faulty boost solenoid
  • Vacuum leak to wastegate
  • Stuck wastegate
  • Damaged wiring

Diagnostic steps

  1. Test boost solenoid
  2. Check vacuum lines
  3. Inspect wastegate
  4. Monitor boost levels

Repair notes

Replace boost control solenoid or wastegate.

Other Powertrain codes on this vehicle

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