Quote:
Originally Posted by hbmarcus
The diesel is gone. It's a 2003 Quigley v10 now.
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Ah, in that case... most modern gas powered engines use an oxygen sensor before and after the cat, the ECU does a comparison. If there's no difference, the ECU believes the cat isn't working, and throws a code. At least that is how I understand most modern systems Ford uses to work. There's workarounds and such, all illegal at the Federal level, and in most states, where frankly the 'juice isn't worth the squeeze' so to speak.
If I were in your shoes, I'd just leave it in place and install a 'cat cage'. There's several good designs out there, purchase or make my own from aircraft cable and oversize muffler clamps. If it gets stolen, then think about a 'work around'. But that's me.