I have a gsr in my 92 eg and i was wondering if theres anyway of telling which injectors are which because i just put ls injectors on and my old ones look just the same but have a blue and white dot on them jw if that is some type of mark to tell what injectors they are?

and also d series fuel rails are these the same as b series because i have a d series aftermarket fuel rail sitting around thats all polished haha so jw

 

the injectors are the same for most B and D's (search for specifics)

fuel rails are not the same and arent interchangeable.

 

ok thanks i figured the fuel rails would be different but jw what injectors these are i have sitting around now they make my gsr run rich haha but not sure what they are like i said they have a blue and white mark on each of them

 

sounds like you have B series obd1 235cc injectors, same as what you put back in, might just be a bad one.