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fuel injectors

  1. Loud Ticking Sound at Idle and Revving...Injectors?

    Problems & Maintenance
    I'm stuck. 08 outback xt. VF52 turbo. 700cc injectors. TGV butterfly valves removed. Headers. High flow cat downpipe. Newly rebuilt engine. Valves clearances were checked, but it is making a loud ticking noise at idle and continues while revving. Only code is P0030 front O2 sensor but did not...