Hey guys I recently switched over from my stock injectors to ford green tops and am getting bad fuel economy. (only thing I swapped was the actual injectors) 2004 M6 GTO (mods in sig)
I was getting about 25/26 highway avg on old stock injectors now im down to 20 with these!
My tuner loaded the data he found on the injectors (bosch 42's) and stuff we might just need to look over short fuel trims?
I duno what to do bc gaining maybe a few hp isnt worth getting 20% less mpg any ideas of what could be to blame?
Car pulls great and accelerates great 02's are working and have a nice 12.5-12.8 air fuel. Its just like idle and low cruise rpms eating more gas than ever before.
Thanks in advance -Pete