I have a 9 and Im running cosworth cams and meth on a flash. Now my problem is my check engine keeps come on. Im almost sure that it is due to a misfire cause from the cams. Today the check engine light came on and I reset the ECU like I always do but then when I tried to boost her, she kept on back firing and would not go into boost. I want to know if this has happend to anyone with a similar set up as me and how do you correct it???? Please Help

 

Have you ever checked the code? That's where you should start.

 

Its a misfire. I going to see my tuner today but any info will be appreciated.