Assuming your Toyota Camry's emissions components are all functioning
properly, considering the high mileage your Toyota has, we'd recommend a
smog check repair station or auto repair mechanic conduct a compression
check to make sure your Toyota doesn't have low engine compression. We're
mentioning low engine compression mainly because of the high miles your
Toyota has and the fact that it smokes a little when your first start the
car.
The smoke indicates oil leaking into the combustion chambers; which also
indicates there may very well be a compression problem. Low compression will
definitely cause your Toyota to produce high HC. If it turns out there is a
low compression problem you'll need to have the mechanic figure out if the
low compression is due to worn out piston rings, valve seals, or scarred
cylinder walls, and make the appropriate repairs. I'm afraid any engine work
at this level will be costly. You may have a smog repair mechanic recommend
replacing your Toyota Camry's engine with one with less miles.
