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boost control valve

  1. BPC failure?

    NG900 & OG9-3 Workshop
    Hey guys, like many other people with boost issues my boost was limited to the upper end of the yellow section and my acceleration was abnormal. Ive had an intermittent misfire in cylinder 4 that only happens when there's a lot of stress on the engine usually getting on a highway in 3rd. I...
  2. Over boosting problems p1549 BCV

    9-5 Performance, Mods & Tuning
    Hi All I will try and explain what is happening with my 9-5 Aero 2.3t estate, stage 1 noobtune. The car had been underpowered for some time I believe so a few months ago I tried the bolt mod, and since then I have had tire shredding boost. At first it was completely untameable, until I changed...
  3. Running with BPC unplugged?

    NG900 & OG9-3 Workshop
    After checking the fusebox under the hood, I found that APC fuse #13 on my '98 900 SE Turbo was blown. Upon replacement, the 7.5 amp fuse blew again. Checked the resistance in the T5 BPC's coils. One was 3 ohms, the other was less than 1 ohm. I took out the ECU and tested the mosfets, and per...