p1555

  1. P1555 (Overboost)

    Anybody else suffered from this diag flagging? It's becoming more frequent on my car now! (Running REVO, Low Boost 9; Timing 6; 97Ron). Have mentione to REVO previously. Seems to happens at high speeds (i.e. 80mph+). Scenario: - Drive at 80mph - steady state, bring boost back in up to...