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Old 03-09-2019, 07:08 AM   #2 (permalink)
Ecky
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Join Date: Dec 2011
Location: New Zealand
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ND Miata - '15 Mazda MX-5 Special Package
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I would say that cracked exhaust manifold and especially the wrong O2 sensor would be contributing to your emissions issues.

Love seeing VXs still on the road. I snapped a picture of one a few days ago - the rear wheel wells looked like swiss cheese.
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