alright, I searched and did the things I found

Can't hear the inj firing through the "mechanic stethescope/extension"
Rearranged the plugs and the same cylinder doesn't fire each time
With all 4 plugs in, unhooked the plug for cyl 3 and hooked another inj just hanging, doesn't fire.
Tested the resistor pack, 6.5v to em all
With the ign on, tested A2 to A1, A3, A5, A7, all like 23ohm or something (but the same)
Fuel pressure is fine, just runing rich because of the one inj not firing
Spark is there also

I know its not working because the primary header tube off 3 doesn't get hot and while its running, I can pull the spark plug boot off and nothing changes.

I'm guessing its the ECU and just waiting to switch and see what happens, can anyone thing of anything else?

oh, its an LSVTEC on 90CRX DX all OBD-0. Place racing harness

 

so you've put a known GOOD injector on the #3 connector and it still didnt' fire/click?

 

If the injector has voltage and the other wire is continuous from the injector to the ECU then you may want to try another injector (which you already did).

Also, try another ECU. That is probably not the problem.

I suspect the problem lies in the engine harness. When doing the DPFI to MPFI the red wire on the DX injector plug is run to the #3 injector. Doing a continuity test between the #3 injector signal wire (should be blue) and the corresponding pin location will pinpoint the problem.

Let us know the results of the continuity test. I am curious.

-kenji

 

from A5 to the injector plug is fine. Couldn't see the screen, I just had it beep (long stretch) but continuity is fine.

My vote is a bad driver in the ECU

Oh, and yeah, I had changed the plugs around a couple times and the only one that didn't work was #3

 

why dont you try your Sohc ecu and find out if it is the B16a ecu...

 

Wow, thanks allmotrb18c1. Such a Pal
'Preciate it

EDIT: just thought about that, and the ECU is for 2 inj port injection, will that still work?


[Modified by Pelican, 3:50 PM 8/29/2002]