Need Help, Car Running Rich After Dp Install

[Stoner]

I just put a new cv shaft (driver side) and downpipe on my car. The dp is 3" and i had some trouble getting it to fit right. There is still a small gap between it and the O2 housing. I need a new gasket and to work on it some more but anyway. I was going to take it to the exhaust shop today to have the rest of the catback made and i got halfway down my road and the car started missing out really bad and wanted to dye. My A/F guage was pegged on rich. I barely made it home and I missed my appointment to get the exhaust done. I wouldnt think that just running the dp would hurt anything or the small gap. Also the last O2 sensor is now gone, would this cause it??? I am stumped and really aggrivated at this point so please help me before I do something drastic like sell it!!!!

Any and all help will be greatly appreciated.

Thanks,
Ben

 

[Stoner]

Figured it out, the LICP popped off. Thank god I only went about 2 blocks like that. I hope it didnt do any major dammage. Anyway its fixed now.