HELP RB20 wont start

[fast_s13]

i just got done swapping a rb20det into my 90 240sx i have everything hooked up but it wont start could some one plz help me out and give me some ideas

[IvoryJ30t]

make sure the fuel lines are correct, and check the cas.

make sure your getting spark and that the injectors are firing.

[fast_s13]

well i just pulled my plugs and im not getting any spark ...also what wires to i need to hook up to get it to run? im useing the ka lower harness

[Yellow4g63]

make sure you have the green relays in on your harness near the ecu or it won't start at all.

[fast_s13]

there in there.....

[Yellow4g63]

then reverse the fuel lines and see if thats the problem.

[JonPowell]

The first thing is to make sure you get spark....

you gotta go through all that wiring to make sure that you are getting signal to the igniter.

[Wulfgang]

I disagree

The first thing to do is listen for your fuel pump running and see if you can hear your ECU relay click when the key is turned to ignition. If those two don't happen, then there's no sense wasting time trying to figure out spark!

But then, yeah, spark, fuel, air.

[fast_s13]

im getting fuel but no spark.... since im using the ka lower harness i need to know what all wires i need to hook up ive gone over everything and i think i have everything hooked up

[JonPowell]

KA lower will not effect spark

Check the igniter on the back of the coil cover to see if its plugged in right

there is also a smaller plug under the igniter that needs to be plugged also if its anything like the RB25

[fast_s13]

i called venus and they are sending me a new igniter i will see if that works

[fast_s13]

the only wires i need to hook up is the red/black and red to black white right/?