Have you checked to see if the injectors are getting power when the ignition is on?

 

These may help some. They're from the S14 SR FSM, so I'm not sure if the information is correct for your application.

And if you don't have power to the injectors you need to move pin 40 on the SR harness to pin 1 on the KA.

http://www.dragva.com/eng/F4.html
http://www.dragva.com/eng/M63.html

 

eng is the man

 

the trigger signal is a ground.....there is 12v applied to the injector from the ign switch, according to that diagram eng posted at least....


and you can have a test light light up when you use it inline in place of the injector...works just like a NOID light.....

hook one end of the test light to a paper clip, insert it into one of the terminals at the inj (disconnected of course) and put the probe on the other terminal, and have someone crank it. (sidenote....some test light bulbs have WAY too much resistance to work, it all depends, but i have seen one test light that doesnt work for this. best thing is of course a NOID light...)

 

I expect to see all you nissan owners on saturday.

 

I wont be there maybe

 

JGY topfeed fuel rail......
JWT POP upgrade tuned for 50# MSD's , 7800 rev cut, 15*BTC , Z32 MAF, and the usual other shit as in speed cut and etc.....

I found out tonight that the voltage on the injector harness was 10.3V at initial turn on and dropped down too is 3.4V per injector, and its making a good ground (seeing as how the ground is made by the ECU) But my injectors are not spraying, I figured they might be fuct injectors so i hooked up the stock fuel rail and injectors and still no spray, I'm thinking i got a bad ECU, meaning the ECU is not sending a output signal to pulse the injectors, but I have spark and the spark works off of the same timming.....

My timming is perfect, and I cant think of any wirring issues I have other than the tranny harness not being completely hooked up..... Compression was 175 all around as well....My last SR was at 140 so the compression on this one is better....I can check continuity but I dont see the point after seeing that the stockers didnt work either....I happened to find a loose conection in my relay harness (its an S14 with an S13 SR in it) and thats why i wasnt getting any power to the injectors....And yes a test light will work and slowly dim at initial on position.....Whats sad is I work for nissan as an apprentice tech, and i have access to the Nissan scanner but it does not read my ECU because the car has to be running in order for you to check work support (monitor all the systems that are electrical) I have an over abundance of information but none of it is seeming to work......I hate life at the moment.....

I dunno man, I'm trying not to give up but its getting rather discouraging.....

-Jeff

 

JWT is no stranger to fucking up ECU's, it's highly possible yours is.

Try firing your 50's with the stock ecu.

 

Core charge homie......Anyone got a redtop/blacktop ECU I can borrow for ten minutes?

I'll give you my Nissan discount on parts and cars if you do.....

 

Are you running the 3 bar or 4 bar program? People where having problems with the 4 bar 50lb msd program. I think it turned out to be something with the injectors. Im sure you could dig up some usefull info over at www.sr20deforum.com about it by searching.

-Mike