So I just installed my 3inch downpipe and my coupler from the the 3000 pipe to the throttle body ripped so I got a new one installed. My problem is that around 4k rpm car sounds like its missing/hesitating and I hit fuel cut. It threw a code 12 and 34. I replaced my MAF and the boost is stock. I have a stock BOV and I can hear it flutter when I let off. Do you guys think my bov died? Also will the car stall if the BOV is dead? All replies are appreciated!