civicwad

Has anybody experienced a sudden loss of mpg along with sluggish power from start and when accelerating at higher RPMs have a pulsating noise like a brush stick on a snare drum under the hood or car? It sounds like an exhaust or vacuum leak. I repl the cat conv last year, tuned up the car, repl dist + cap + rotor + plugs & wires. I don't have the tell tale signs of a blown head gasket and the check engine light isn't on. I checked the manifold exhuast to make sure no cracks and it looked good. I suspect an O2 sensor or something similar, but I figure the chk eng light comes on once that is a problem. I am at wits end on what to do and hate driving such a nice car with such poor performance. Any help is greatly appreciated. CW

Running Riot

sounds like an exhaust manifold leak?