Quote:
Originally Posted by go_go_gadget88
Dn't you have your rear o2 still? You said you have HFC...so I assume you have rear sensors still? Otherwise not sure why the cats would be on there. Either way, my exhaust note didn't change once the code popped up, or at all really.
I got a CEL almost immediately on mine, but I just used their midpipes and didn't have cats or rear o2 sensors..so I was expecting it. They sell cheap little bluetooth OBD2 readers you could use to make sure the CEL is related to the exhaust.
Also, be warned if not running o2 sensors...you need to tune it pdq or you run the risk of the code(s) getting set to permanent, and will still throw engine light even after being tuned out with something like HP tuners (ask me how I know :( )
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Thanks for the heads up. In my research, a lot of guys were saying it would be ok to run without a tune for a while and all it does is make the car run rich. Looks like I'll be hitting up Dynosteve a little sooner than expected. To answer your question, no...I do not have the rear o2 sensors because the cats didn't have o2 bungs (Magnaflow part# 59959) and since I was going to get it tuned out anyways, didn't bother to have bungs welded on.