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Old 08-03-2013, 02:50 PM   #2
Mikester
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I personally would go no smaller than 18 for something like this... and only if I were in a pinch... Optimally, you want to match it ... The ECU sends & receives voltage & current from the MAFS in order to effectively heat the element & measure the airflow. Adding thicker wire essentially raises the resistance. Now whether or not the effect would be drastic or even noticeable is something I don't know for this application... But your best bet is to stick as close to the same gauge wire here as possible...
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