My 94 VDP is very hard to start at times. Usually after it's been sitting
for several hours. I have cleaned the fuel system from the tank to the
injectors. It has a new fuel and air filter. I recently changed the
distributor cap, rotor button and plugs. The plug wires checked good on the
ohmmeter. I cleaned the intake tubes and throttle body with throttle body
cleaner (I did not remove the throttle body). Once the car starts, I get a
puff of smoke from the exhaust, but it smells more like a lean burn than
like burning oil, and it stumbles a bit, but it runs great and gets good
mileage. At normal temp, it fires right up, no smoke or stumbling.
Everything I have tested seems to be working right.   What should I try
next????
Thanks,
Gunner