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P0021 Diagnostic Trouble Code Discussion for March 2012

Camshaft Position 'A' Timing Over-Advanced / System Performance (Bank 2)

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Trouble Ticket Help Requests for DTC P0021
Help Request Posted
2005 Subaru Impreza WRX STI 2.5L MIL Lamp on VIN: JF1GD70695
P0021: Camshaft Position - Timing Over-Advanced / System Performance (Bank 2). ... that will set P0011 and P0021 codes every 3rd drive cycle. I have checked the timing marks and they are correct. It has the correct genuine Subaru timing belt. The camshaft phasers have been changed along with both oil control valves. I have taken the cams...
March 29, 2012