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Home >> Subaru >> 2017 >> WRX STI >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (P081A To P2097) (2.5L) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P2004 TGV Control Stuck Open Bank 1 >> Notes
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DTC P2004 TGV Control Stuck Open Bank 1: Notes

DTC DETECTING CONDITION: 

Immediately at fault recognition

CAUTION: After servicing or replacing faulty parts, perform Clear Memory Mode <Ref. to OPERATION , Clear Memory Mode.>, and Inspection Mode <Ref. to PROCEDURE , Inspection Mode.>.
Step Check Yes No
1 CHECK FOR ANY OTHER DTC ON DISPLAY.  Is any other DTC displayed? Check the appropriate DTC using the "List of Diagnostic Trouble Code (DTC)". <Ref. to List of Diagnostic Trouble Code (DTC) .> Go to step .
2 CHECK TUMBLE GENERATOR VALVE RH. 
  1. Remove the tumble generator valve assembly RH.
  2. Check the tumble generator valve body.
Is there any dirt or clogging with foreign objects in the tumble generator valve? Clean the tumble generator valve. Replace the tumble generator valve assembly RH. <Ref. to Tumble Generator Valve Assembly .>