I was standing next to my son's 99 DOHC when he started it and noticed a pretty strong carbon/exhaust smell. I know what antifreeze/head gasket type leaks smell like and this was not it. The car runs fine, no codes or pending codes. Live data read outs look normal as far as I can tell. No smoke from exhaust but the inside of the end of the tailpipe is pretty sooty. It does not get very good gas mileage as a lot of you guys claim on the forum, but most of the driving is quick in town traffic trips, no real open road driving. It gets maybe 15mpg. I did a lot of work to this car when I bought it for my son and it seems to be pretty tight. Good compression, new plugs, new intake gaskets, new air filter and so on. I have not changed plug wires, they look almost new and appear to be of high quality. It runs good other than the gas mileage. Any ideas, or just live with it? Thanks.
Ed
Ed