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New Edge Cobras
1999 cobra blow really bad smoke an smells like rotten eggs..
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<blockquote data-quote="MrMax" data-source="post: 16352793" data-attributes="member: 183229"><p>Is it throwing any codes?</p><p>I would guess maybe the Cats were on the downward spiral for awhile if the prior tune was not on point. Higher HP boosted applications are tough on Cats regardless. Not much point in doing any more data logging for now. I would double check and review your tune with VMP and have a qualified shop diagnose the issue. If it is the Cats you can replace them, or do a Cat delete in some manner or another. Depending where you live(inspections, etc...) you will either have to trick the ECM with anti-foulers or resistor's on the O2 sensors or simply have the tuner turn them off(most wont do this anymore)</p><p>You will need to revise the tune with VMP if you go "free flowing exhaust". Then data log and have them fine tune further.</p></blockquote><p></p>
[QUOTE="MrMax, post: 16352793, member: 183229"] Is it throwing any codes? I would guess maybe the Cats were on the downward spiral for awhile if the prior tune was not on point. Higher HP boosted applications are tough on Cats regardless. Not much point in doing any more data logging for now. I would double check and review your tune with VMP and have a qualified shop diagnose the issue. If it is the Cats you can replace them, or do a Cat delete in some manner or another. Depending where you live(inspections, etc...) you will either have to trick the ECM with anti-foulers or resistor's on the O2 sensors or simply have the tuner turn them off(most wont do this anymore) You will need to revise the tune with VMP if you go "free flowing exhaust". Then data log and have them fine tune further. [/QUOTE]
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New Edge Cobras
1999 cobra blow really bad smoke an smells like rotten eggs..
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