[FBP Si 2000]

Are you using the GReddy blue box? If so, are all your connections soldered? I get that code from time to time, but it hasn't shown its face lately (thank god). There's basically nothing you can do about that code since it has to do with the ECU and the GReddy blue box. Basically, most people with the GReddy kit for the Si's either get the code 13 or 45...