Along the lines of the EFI cars i have two and one seem to have a problem of not starting with out a little deceleration on the pedal and even then does not idle till has been running for a few seconds, the other one runs great until hot and then seems to idle two hi my guess would be around 1000+ Rpm's. the first question is how do i adjust the EFI to run better cold and not quick. The second question is how do adjust the idle on a car that is running to high after hot. The first car let, s call it (A) and the Second let's call it (B). [A) car also has a stall problem when hot always starts back up just running very up and down the RPM "S move up and down to much in my eyes and on the down rpm's this is when it stall's. Other than that the cars run great. Help!!!!!