1999 Honda civic loss of compression cyl 3 compression less that 15 psi wet test no real increase .prssured with air ,leaking towards exhaust, exhaust valve?? if so I have previously been able to notice oil out of exhaust at start up and a also during high accleration could this have been why. and I now have extremly low compression in that cylinder and noticed that plug being the worse that last time I changed plugs now that i think about it.I recently replaced exhaust manifold with DC 4-1 headers and a aftermark cat and exhaust like as recent as a week previous to this any relations? I dont think so but please any imput helps. what could have caused it?
Apr 2, 2012 at 6:18 AM
