no flow ??

[Zodiac13]

ok well to start from the beginning the kit worked great when i got it. unfortunately i got rear ended 2 weeks ago now and my buschur 3' exhaust was ruined. as i wait for the insurance to clear up i am using my stock exhaust at the moment. so as for the kit i have my bottle filled over half way. gauge starts up normally and everything just like it did before but now if i throttle it im not getting any flow but instead the "B" led lights up. do you think this is because of my exhaust being changed out and not re-tuning it yet or could it be something else? thanks in advance guys