well i just swapped a b20b in to my integra. i had a built ls and i pulled it out. well i put stock injectors back in it and it wouldnt fire up. its getting gas to the fuel rail, but not comming out the injectors. so i put the 450cc injectors that i had in the old motor, to see if i just had bad injectors, well they worked fine and the car fired up. so long story short i tried 2 more sets of injectors and neither of them worked? so im stumped?any ideas

 

you need to get a stock b20 map for; im guessing the chipped ecu your running.

basically your trying to run the built ls with 450's tune on the stock b20 with 240cc injectors. it just wont run right.

 

sorry i forgot to put that in the orginal post,i have a stock b20 ecu on the car now. the chipped ecu is out

 

did you use resistors for the 450 injectors? also what ecu is it? and what year integra?

 

yea i used a resistor box for the 450s, but i took it off when i went back stock. i think its a p75 but i have to look, i cant remember if i changed it out, its a 94 integra

 

anybody?