Mine was the same with my HKS. I had it in, gave the BOV a tug to ensure it was in then went for a boot. 5 mins in it sounded like gun shot as it shot off and i missfired and set off the cel. Now I took it back to the guy that installed it and he assured me it was fine this time but now im scared to really push it smile

99 Eclipse GST RIP
08 Evolution GSR 440HP/410TQ
11.96 @ 116 MPH(more to come)