'95 Honda Civic doesn't crank when cold outside

Cold start air metering is wrong, the engine is too lean when the temp is below a certain point...a few different things can do that, Coolant Temp Switch, Ambient Air Temp sensor, The IAC (idle air control) or whatever Honda calls it might be sticking, etc.

IAC or gunked up throttle plate not closing all the way is most common...

I also have a '91 Honda Accord and it idles really high (around 2 rpm) when it is hot outside and when the engine is hot...what may be wrong with it?

h> Thanks...alot...at least I know now some where to begin....anyone else

If the gas pedal cable has not been misadjusted this is usually a bad throttle position sensor. It is part of the throttle body assembly and not intended to be replaced separately nor available separately from Honda. Not to say you couldn't drill out the rivets and replace it to prove a point, perhaps.

Don