runs good but needs starting fluid s

[idahotuner]

2.2 sr20det red top
dual inline walbro 255
96 # msd injectors

fp is set correctly

im not new to this, this just isn't making since

with my last set up it ran fine and started fine, the only engine running things that i changed was adding resistors and msd injectors, and hooking up dual inline fuel pumps with a hardwire kit.

well ecu came back in after having martin at RS go through it, so i have been out in the shop messing with it, and it still won't start with out starting fluid, it just seems like it isn't getting fuel. spark is good and strong on all cylinders

i have tried starting it with the : tps disconnected -no change
maf disconnected -no change
fuel pump fuses pulled - no change did this to see if it was getting to much fuel

tested pin 32 i believe it is to make sure when cranking it is has 12v

I pulled all the spark plugs one had fuel but the others were dry, could the injectors be getting stuck when the car shuts off, and need ether to jump start them, cause once the car fires up it runs fine, idles and revs.

fuel lines are hooked up right, when i wired the resistors in i put them farther back in the engine bay harness on the red wires
http://i221.photobucket.com/albums/dd230/idahotuner/2011-10-18115421.jpg
these 4 wires,

also the clips i got for the resistors had white wires on booths sides, so would it make a difference which way the power comes through the injector. http://i221.photobucket.com/albums/dd230/idahotuner/2011-10-19143021.jpg. html that is how i wired them, i don't know if that would make a difference.

but all of this makes no sense seeing that once the car has starting fluid it starts and runs perfectly.

[idahotuner]

injectors are getting 12 volts, but when cranking its 6.9-7.5 volts

[96Turbo]

check the injector power wire, I believe it's the red wire in the gray plug (passenger side corner, under hood, s13). Take a small screwdrive and pry out the small metal tab on the female side of the plug to make sure it's making good contact.

[idahotuner]

Ok . Martin said to even run a seperate wire. To check it

[96Turbo]

I don't think you'd need a separate wire... high impedance injectors don't really draw that much current.

On a past s13 i had, I repinned the grey plug. Somehow I bent the small tab enough that it would only make intermittent contact to the male side of the plug. It would start up no problem sometimes, and then the next day it wouldn't start at all. Took me forever to track it down, but it sounds like your problem may be similar.

I'd have 12V on the injectors with the key on always, but as soon as they needed more power (to fire) i think the weak connection would cause a huge voltage drop.

[idahotuner]

This grey plug goes into where

[96Turbo]

connects chassis harness to engine harness. it supplies power to ecu/injectors/etc. It's right next to the smaller brown plug. passenger side front corner of engine bay by fusebox

[idahotuner]

Awe ok thank you

[idahotuner]

http://i221.photobucket.com/albums/dd230/idahotuner/20130221_215843_zps5f3c959b.jpg this the plug

[idahotuner]

I'm going to find which pin and test resistance of the wire all the way to the injector.

[96Turbo]

yep, that's the plug. I think it's the red wire shown on the bottom left corner of the plug. just start by bending all the tabs down on the female side of the plug. should take 1 minute. Then try to fire it up, and let me know!

[codyace]

I know it sounds super simple, but you do have the resistors installed on the driven side and not the common power correct? I had a similar instance where this happened and the owner had a resistor on the wrong side.

[96Turbo]

The more I think about it, the more I'm convinced that it's a weak connection to the injector power wire.

When you try to start it, the starter draws a LOT of current, and with the weak connection the injectors don't get the proper power. So the starting fluid lets it start, and once the starter motor stops cranking, the injectors finally get adequate power to fire normally.

[idahotuner]

well i found some issues in the harness, i pulled the whole thing and i didn't get all 4 wires, if i had moved down the harness i would have had the resistors in the right spot,

so simple solution, ordering a custom wiring specialties harness.

[idahotuner]

get my new harness all wired up, and had to redo a couple plugs, but the car fires right up now, should run a lot better in boost now too.

[idahotuner]

so if all else fails contact wiring specialties for a new harness