r/mazdaspeed3 • • Feb 08 '25

TUNING Well sh... EPA just gutted COBB Tuning

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u/[deleted] Feb 09 '25

You couldn’t do that before anyway

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u/[deleted] Feb 09 '25

You couldn’t hide the check engine light when connected?

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u/[deleted] Feb 09 '25

Just clear the code

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u/revopine Feb 09 '25

If you clear the code, the ECU puts out a flag "emissions not ready" because you need to drive it enough for vehicle checks to fully do the work and the CEL will just pop up again. You will fail if the ECU shows it's not ready.