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1990 Mazda B2200 Question: What do the code mean on my failed emission test? I have new muffler and exhaus

 

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sriddle7, 2.2L 4 Cylinder, Locust Grove, GA, June 22, 2013, 05:34
 Rookie

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?

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