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Old 01-13-2013, 06:56 PM   #25 (permalink)
Zoren 370
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Join Date: Mar 2012
Location: FL
Posts: 11,018
Drives: 11 Nissan 370 M6
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How will you know if the car is running lean or rich? What are the signs and symptoms? So I will know if my AFR is just fine. Without the aid of diagnostics.

so far my exhaust tips are not black with carbon. But I smell unburned fuel everytime I start the car but someone said over here its because of the HFC.
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