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Old 08-26-2012, 03:41 PM   #1
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CEL question

hey - those of you you delete your secondary air injection and cats (ie, race conversions) you get a CEL, but does it affect performance in any way - i.e., does the computer default to a limp mode or anything?
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Old 08-26-2012, 04:03 PM   #2
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Deleting the secondary cats on the 2.7 and 3.2 boxster has no adverse effects on emissions or OBD II compliance .
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Old 08-26-2012, 06:05 PM   #3
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sorry if confusing; i meant 'secondary air injection' or 'cats' (both primary and secondary). spec racers do it and i'm told that they just remove or tape over the cel light, so i think the ecu doesn't care. i just want to confirm as i have a window of time to get the work done now, but won't be getting my row flash (which cures this issue) for a while.
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Old 08-26-2012, 06:53 PM   #4
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Quote:
Originally Posted by The Radium King View Post
sorry if confusing; i meant 'secondary air injection' or 'cats' (both primary and secondary). spec racers do it and i'm told that they just remove or tape over the cel light, so i think the ecu doesn't care. i just want to confirm as i have a window of time to get the work done now, but won't be getting my row flash (which cures this issue) for a while.
My cats are still in place but as I understand it, the secondary o2 sensors only report emissions and don't affect mixture or performance. Same with SAI.
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Old 08-26-2012, 10:16 PM   #5
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My SpecBox has no cats or secondary air, constantly runs the CEL and seems to run just fine. I do not believe it is an issue.
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Old 08-27-2012, 05:55 AM   #6
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thank you.
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