I installed a set of Bosch replacement injectors for my original leaky ones and now my highway milage has dropped from 18-20mpg to 12-14mpg! The engine seems to run fine with plenty of power and the RMP has actually dropped a hair for highway speeds. Sometimes it starts a little rough but quickly smooths out. Nothing else was replaced and the milage was fine beforehand except for the slight loss due to the leaking injectors.
Does something need to be recalibrated with these new injectors which have a four hole spray pattern instead of the original one hole pattern?
Does something need to be recalibrated with these new injectors which have a four hole spray pattern instead of the original one hole pattern?