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I bought my car early February from MoM. Early March I had the central silencer cut out and replaced with straight pipes. Shortly after, the CEL came on (can't remember the code right now but had something to do with cat preheat). My car is in the dealer now and they just called me to let me know both pre-cats are completely empty. Not blown out but emptied out (they can inspect through an access hole). Seems that removing the central silencer reduced back pressure just enough to cool the cats down to trigger the CEL. It's their opinion that they were purposely cleaned out because if they blew out, the remnants would get stuck in the cats and block the exhaust. Also, probably only one side would have gone. So, this begs the question whether the cats themselves have been cleaned out as well. Probably not since it took the removal of the central silencer to trigger the CEL but who knows. Has anyone ever heard of someone purposely cleaning out just pre cats (or both cats) and not doing any other exhaust work?
Anyway, NOT covered by warranty. The car runs strong and throws the CEL after about a day. Passed Texas emissions when I got it. Dealer suggests just living with it for now but I'm worried about the next inspection. Any comments?
Anyway, NOT covered by warranty. The car runs strong and throws the CEL after about a day. Passed Texas emissions when I got it. Dealer suggests just living with it for now but I'm worried about the next inspection. Any comments?