Injector Problem Testing

**CRXer** · 16-09-2006 12:22 AM

Originally Posted by XP02ED

ok no a dumb question ready that post and about the relay
he said it can be found under the glove box!

is this where i find it?

btw will i need to unplug the harness to check the main relay wires, im assumin no becaus no power will be put into it,

so im guessing there should be metal bits ontop of the plug to do the test

no,some models are under the glove box,but yours Im fairly sure is above the hood release lever,I removed one from a DC2 recently & I should imagine it would be similarly placed to yours.

Get down near the lever & look up under the dash u should be able to see it.U might be able to test it without removing the plug or relay itself if u can see what your doing.

Heres a pic of where mine lives ,It should be mounted up where u see the wires coming from.

Also below u can see the 2 yel/blk wires joined to the same pin(2nd pin from top left) & u should be able to touch your tester on the exposed metal of the pin from underneath without removing anything as u can see the metal of the other pins as an example.If u cant reach it u'll have to pull it out to test.

**XP02ED** · 16-09-2006 03:06 PM

ok so i did what ya said.. i marked down what i got with red, getting a response back so i got a light back as shown on pic below :

so it seems that its working? this correct? ALTHOUGH sometimes it works sometimes it doesnt?.. how i tested it was by turning car on then putting my liught tester to each one i got a response from 4. 1 is definately the petrol which was the green wire

so basically i further investigate this. i TRIED to follow the wire in the car. but the harness stopped me, so im now sure where it goes out from? issit from the front drivers side or passenger side (which follows the harness across the front) or directly outside

i THINK its the drivers side please confirm.. although i followed this wire right which lead me to this :

after finding this wire, i assumed it was the black on yellow SINGLE wire i see. NOT the HUGE one which i think the starter motor uses but a regular wire.

so i tested if it was active which i saw it was. before and after plug.

NOW where i got confused there is an extra plug which isn't connected anywhere WHICH the black on yellow wire connects to. which the plug produces 5 more wires. 1 going to something below the air thingo. and the other 4 markes with black dots as well going to injectors!

as shown here :

NOW dont call me crazy BUT this plug isnt connected anywhere for the 4 lines to be active which go to injectors! IS this the pROBLEM!

here is a pic of the missing plug connecting nowehere! IS THIS NORMAL? i habnt tested these lines to see if its active as my tester DIED!

basically what im thinking is that the lines to injector may not be working because it isnt getting any current in to as the line to it isnt plugged or joint to any other wire? am i guess right?

if im wrong please tell me!

if someone could please tell me how the wiring from the injectos (black on yellow) wires go the main relay! or issit direct going via harness if so can i put a direct line which goes to it to test if the injectors squirt?

also how does the other 4 wires from the injectors connect to the ECU? direct? or does it lead to anything

**CRXer** · 16-09-2006 04:37 PM

Dude...u just found your prob,well done.

Tests at the main relay were correct results.

That mystery plug your holding with all the yel/blk wires coming out of it is the connection point I been talkin bout at the shock tower.

Somehow the connecting plate has falling out of it, see the pics of mine below

the plug should have a piece in the top of it which joins all the yel/blk wires together.
You will either have to source this piece from somewhere or a quick fix would be to just cut the plug off & join all the wires together & solder them or use a mechanical connector of some sort.U could even just twist & tape them together for know to see if u can get it started.

**XP02ED** · 16-09-2006 07:18 PM

yeh i figured that out and i ended up cutting it up and basically connecting all the 5 wires to the 1 wire..

which started the car BUT now i got an idling problem where i need to keep accelerating for it to work, im assuming timing? or other stuff anyhow im gna get a mechanic to finish this job

that extra wire where and what does that do?

anywaiz DUDE! THANKS ALOT! i appreciate your help! hopefully i get my car started in the next week and finished

so at the long run, nothing was actually wrong, the person who installed the harness didnt fix the injectors, i axctually told him what the plug does and he quoted dw about that it exactly like mine, its missing that plug

obviously that plug was something i needed to worry about!

**CRXer** · 16-09-2006 07:28 PM

If u mean the extra yel/blk wire from the plug it will feed power onto your IACV (Idle Air Control Valve) the thing on the back of the manifold i think your talking about.Without this, of course your cars not gonna idle to well.

**XP02ED** · 16-09-2006 07:37 PM

OMG

so this wire is causing my idling problems? OMG! cool thats another problem solved i had no idea, all i wanted to fix was my injectors! serzly dude! u rock! thanks!!

now looks like im gna create another thread to install VTEC

i get an error 22 and 23 i think on ECU? regarding sensors and vtec

i got a few links to show me how to do itbut i guess thats the next step after i get my car working!