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What do the code mean on my failed emission test? I have new muffler and exhaus

(1990 Mazda B2200)
in Locust Grove, GA on June 22, 2013
on 25/25 test
HC PP Reading 505 allowed is 223
Co% Reading 12.22 allowed is 2.79

On 50/15 test
HC Pp Reading is 389 allowed is 228
Co% reading is 11.86 allowed is 2.06
Can you tell me what I need to repair? Is it the catalytic converter?
Displaying 1 answers & 0 comments
Popular Answer
on June 04, 2014
you can try retarding your timing
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