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Old 09-28-2018, 06:45 PM   #10
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Join Date: Jul 2018
Location: Ft Bliss, texas
Posts: 17
Update. I ordered the elm327 from ebay for 7 dollers and downloaded the torque pro ap and it works great with the 986 and has awesome features. My only question for the fuel economy part its asks for alot of information and the only thing I dont know and I cant find is the volumetric efficiency. What is that?
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