[Shotimes] fuel injectors, ratings, and colors

[van Oss]

The plastic part of a fuel injector seems to be color-coded to indicate the
pounds-per-hour rating, is that right?  So when shopping for a used set of
injectors, can I safely shop by engine, then rely on the color to indicate 
PPH?

One of our cars needs its injectors serviced.  I can't afford to have the 
car
out of service while I ship her injectors to WitchHunter and wait for them
to come back.

TIA for any advice.

VO