Originally Posted by 99ranger4x4
do those actually work on a fuel injected engine?
Well, since there is no throttle body on a carburated engine, that would mean there is no throttle body spacers on non fuel injected engines. So a throttle body spacer doesn't work on a carburated engine, but does work on some fuel injected engines. I have just heard many times in this forum that they don't work on Rangers.