2018 Subaru WRX STIFACTORY OEM SERVICE PROCEDURE

Drive Cycle X

DTC Item Condition
P2004 TGV CONTROL STUCK OPEN BANK 1 -
P2005 TGV CONTROL STUCK OPEN BANK 2 -
P2006 TGV CONTROL STUCK CLOSED BANK 1 -
P2007 TGV CONTROL STUCK CLOSED BANK 2 -

Diagnostic procedure: 

  1. Using the Subaru Select Monitor, perform the clear memory for «Engine». Ref. to ENGINE (DIAGNOSTICS) (STI)>Clear Memory Mode>OPERATION .
  2. Idle the engine for 10 seconds or more after engine start.
  3. Place the gear shift lever in neutral position, and race the engine for 10 seconds or more.
    NOTE: Keep the engine speed at 3500 rpm or more.
  4. Read the temporary code using the Subaru Select Monitor or general scan tool. Ref. to ENGINE (DIAGNOSTICS) (STI)>Read Diagnostic Trouble Code (DTC)>OPERATION .
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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