I just got mine too. I installed it and got an engine light that would not go out. Cobra had the lead tech call me and come to find out that the producer of Cobra power commanders is right here in vegas. I went down to his shop and he replaced the circuit board with an updated version. Apparently the original boards had resistors which can cause blockage of the signal from the fuel injectors to the ECU which inturn cause the light to come on. He said the bike is completely ridable though. The new board eliminates these resistors. If you get this light then just contact Cobra. Their customer service will take good care of you. I believe he said he overnights the replacements. Oh ya, he has one on his Harley and is very interested in any feedback we have on this unit on the Stryker. Good or bad. So far except for this glich he has gotten very positive feedback saying a very considerable power increase with any lag eliminated.
Good luck,