Mazda Talk Forums

Posted: **Tue Aug 09, 2005 2:52 pm**

I have a test pipe in now and the check engine light is on. Would switching to a high flow cat fix that?

Posted: **Wed Aug 10, 2005 10:23 am**

Assuming an OBDII car Miata then indeed the lack of cat may be the cause of the engine light and putting a cat back in...factory or JR or otherwise, should fix the issue.

Mazda Talk Forums

Will a JR high flow cat still trip the check engine light?

Will a JR high flow cat still trip the check engine light?