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      05-17-2013, 10:07 AM   #1
darkenergy
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Catless Pipes causing Engine Light?

Hello everyone,

I am just doing some research on upgrading my factory catted pipes to some catless downpipes. I am fairly uninformed with the understanding of the exhaust but would having catless downpipes cause the engine light to come on?

Right now I have Cobb Accessport running Stage 1 map (N54) and I am hoping to bump it up to a stage 2 map with the necessary upgrade. Would the stage 2 map have something written in them to compensate for the lack of Cats in the downpipes?
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      05-17-2013, 10:23 AM   #2
R3SQ
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Correct, once you upgrade your downpipes and switch to Stage 2 through your Cobb the tune will get rid of the CEL.
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      05-18-2013, 07:49 AM   #3
b1aze
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It will prevent the CEL from triggering but it will NOT cause the system to be in a "ready state" for OBDII inspection if your state requires it.
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      05-18-2013, 09:36 AM   #4
darkenergy
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Thanks guys, thankfully in Canada where I live we do not need OBD 2 nor emissions testing.
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      05-18-2013, 10:31 AM   #5
Tommeh
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I have had this CEL light for years. It was partially remedied when I had a JB4, but is there no permanent fix for it? If you get the BMS DP fix will this put the system in a "Ready State"?
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      05-18-2013, 02:50 PM   #6
foofopps
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Yes, and I have one for sale right now...
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