Just got my kid a 91 crx. excellent running and driving car. the other day this car smokes when first started up and at high rpm 4-5k it smokes pretty good as well. Seems to be less when engine warms up. Ive checked everything. Kinda a bluish smike, smells like fuel so Im sure it is a fuel issue. plugs look good, even replaced them, i checked timing, compression, valve lash, fuel filter, air filter, etc. this car has the 1.5 l with the throttle body looking thing on it. no check engine light on. anybody have any ideas......