My son bought a nice 2003 Cavalier last year on Craigslist. We noticed this thing underneath the dash the other day, and tried looking it up. There is no manufacturer or serial numbers to go off of. My guess is it has something to do with air/fuel management or something to improve performance and or mileage, but not sure. Hoping someone here can figure this thing out.
2006 Cobalt SS/NA
Last edited by WICobaltSS; 07-16-2017 at 11:18 AM.
Looks like somebody's strange contraption to save fuel but hell if I know what it does.
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