I'd really appreciate if you responded with the solution if you ever get one. I've been trying to tune a guys car for about 3 months now, and we keep having the same issue. Granted his is a JDM ecu on a USDM car so wiring also plays a part. But we have tested and/or replaced both cam sensors, both solenoids, all wires, and the ecu. Only things we have left are cam gears. I've heard that if the gears were put on with an impact it could damage them, though I don't know the truth to this.