I started a couple of other threads a couple of months ago, but nothing has worked.

Info:
89 crx
b16
obd0


My injectors are not firing. I have checked continuity. I have 2 ecu's (pr3 and pwo) and get the same results with both. I replaced my crank angle sensor pins and she fired up, but only ran for 10 minutes and shut off. Hasn't started since. I am getting zero codes.

I am stumped, I really don't want to start throwing parts at it, but I really am at a loss. I need a list of reasons of what would cause the pulse to not be sent to the injectors.

In the other thread someone mention it could be a bad ground, where would I find the ground that controls the injector pulse?

 

http://www.wikihow.com/Test-Fuel-Injectors

 

There is nothing wrong with my injectors, I have already tested them. My problem is that my injectors are not being sent the pulse to fire.

 

So was it running fine before? Or did you just do the swap?

Any CEL codes coming up?

Do you have obd0 injectors or obd1? Are you using the resisitor box?

The ground to check is on the thermostat housing.

 

have you done the MPFI swap?

 

It was running fine before, one day it just shut off. Did some tests and found out the injectors were not firing.

no cels

obd0 and yes running resistorbox

scuffed up the ground on the thermostat and bolted it back down

 

I have an 89 HF so it came MPFI from the factory

 

ttt, ideas anyone?

 

I recently just experienced the same issue. I got to the point where I was ready to rip out the wiring harness and start manually tracing where the power/continuity stops between the main relay and injectors. I got it running a couple of days ago, problem was my distributor. More specifically the sensors integrated into the distributor (cam and crank position sensor I believe). The coil and ignitor were both replaced with new not used units and it still wouldn't start so I figured the issue was else where until my buddy loaned me an extra distributor.

My thread is a couple pages back now if you wanna read and see the trouble shooting process.

 

posting up for reference:
https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/1991-honda-civic-no-start-condition-3101841/

 

U da man 24TEN I bought a brand new td22u distributor andi havent had a problem since!

 

OMG it's been over a year!! Glad you got it running though