my ecu keep pulling the code for fuel injector leak but my injectors are relativly new and they seems to be ok. Then I just found that there are blue marked injector (for cyclinder 2 and 3) and black marked (for cyclinder 1 and 4). I wonder what are the difference and what happen if I mixed them up? is there suppose to be orange marked as well? Thanks for the help

 

the caps should be red. Maybe if you take a picture i could understand where the mark is and what you are asking

 

yea my injector are red cap too but I found these on the internet

http://www.autopartsauthority.com/sp...or-sparts.html

 

that's wierd, i thought all 270ccs were the same. what year is yours?

 

I have a 1990 fastback KA24E. I just checked mine, they were all orange marked

 

hows the fuel pressure? how old is your pump? try to run it with the gas lid open and see if it makes any difference (less vac)

 

I think I have never change my fuel pump and my car is around 160000 miles. but l I started my car and ran for a bit without the gas cap. don't really feel any difference at all