Im not sure which ones they are and im trying to buy them.

I need the the 345cc peak and hold prelude injectors i currently am using the 290cc ones and its making my car run like crap. its making my car run lean, well at least thats what the cel is giving me. i know for sure that the ones i have are the 290cc

i appreciate anyone that knows.

 

if you match the 290s with teh 97-01 fuel pressure regulator you will get enough fuel.

 

well the thing is that the whole motor is from a 97 and my chassis is a 96, i have the resistor box in place originally, cuz i bought the car like this. I'm tryin to fix this problem now. can i just take out the resistor box? or do i have to get those 345cc injectors? the car already has the 97-01 fpr

 

id jsut lose the resistor box then.
thats all you need to remove to have the right flow.

 

so thats all i have to do? koo just cut and snip and put the wiring back together without the resistor box, but also since it is a 96 ecu wont it wanna read the 345cc injectors or it doesnt matter?

 

all teh ecu is tuned for is a flow rate, not injector size.
290cc injectors run at 47-54 psi which means they flow at appr 310-320cc.
345cc injectors run at 35-43 psi which means they actually flow at 310-320cc.

 

alright i understand now i was in the impression that the ecu also read the injector size. alright then thx v4lues.