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PaleMelanesian · 01-04-2013, 11:43 AM

Check the exhaust manifold where the top O2 sensor goes in. Many of these civics (including mine) end up cracking there. It's right up top in front, easy to find.

01-04-2013, 11:43 AM	#11 (permalink)
PaleMelanesian Hypermiler Join Date: Dec 2007 Location: Texas Posts: 2,321 PaleCivic (retired) - '96 Honda Civic DX Sedan 90 day: 69.2 mpg (US) PaleFit - '09 Honda Fit Sport Team Honda Wagons 90 day: 44.06 mpg (US) Thanks: 611 Thanked 434 Times in 284 Posts	Check the exhaust manifold where the top O2 sensor goes in. Many of these civics (including mine) end up cracking there. It's right up top in front, easy to find. __________________ 11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles