Fueling issue -injectors not firing

[rotten]

Hey all , New guy here with a problem on my 97 aspire 5 speed .
The only other transportation I have is my 04 CBR1000rr and it 20* , SO i need to get my Apsire FIXED ASAP .

My fuel pump died on me last week and i replaced it and the car ran fine .
Now the car will run a for while then stall out an die and wont restart for days . It has good fuel pressure , good spark (verified spark timing) , no codes except the random missifre code it has had for the last 20k miles .
The problem is the injectors are not firing , the car will start if you dump propane into the manifold or starting fluid , but won't supply its own fuel via injector pulse .
I back probed the connectors and its not firing them . The ecu Definitely works as I stay connected in monitor mode on my obd2 scanner . I get readings for all the available sensors .
I have never experienced and injector driver failure in an ECU , except when using the wrong impedance injectors .
Im not to sure how the ECU work in the aspire's , which side determines fueling ? Is it the Crank or the cam positioning sensor ?
I'm stumped ? Any thoughts ?

[25Horseplay]

I had a that happen before. it turned out to be the module in the dist. I replaced the dist.

[rotten]

I had a that happen before. it turned out to be the module in the dist. I replaced the dist.

Just tried that ,and it won't start .

[anomoly40]

Use the 9v battery test and spray them out with carb cleaner. Search for "skeeterskeeper injector test".

[mechanicaldj]

do you have a RPM signal with your code reader????????

[rotten]

do you have a RPM signal with your code reader????????

yup , crank sensor is working cranks over 275-325 rpm

[econoaddict]

According to Mitchell the injector timing signal (along with others) is sent by the crank sensor (CKP) to the pcm.
The cam sensor tells the pcm when #1 is at tdc.

ok, finally found it, the pcm processes sensor inputs then "fires" the injectors with a specific pulse width as needed.

So from what I am seeing they are pcm controlled.
I would verify the cam sensor before heading to the pcm as the injectors are triggered in order just like the spark plugs.
Basically if the cam sensor is not sending a signal the pcm doesn't know when to start the cycle.
From what I am reading the cam sensor is part of the distributor and not servicable seperately.

Sheesh I hope something here is useful, hard to condense everything I am reading to a short sort of understandable paragraph.

If you have the capability pull a waveform off the cam sensor, easiest way to tell if its bad or not.

[rotten]

According to Mitchell the injector timing is controlled by the crank sensor (CKP).
It sends signal to the pcm which controls all from there

Kool Kool , Thats my next 2 subjects of intrest , the Crank sensor and the injector driver (and what might have caused the inj driver to fail ) .
If all else fails I'll break out the BFH and go to town.

[collegeboi]

Did you check your timing because I had my panties in a bunch trying to figurew it out. Thought disy but the timing was justoff.

[econoaddict]

So now after rereading the posts:

Did you replace just the ignition module or the whole distributor?

[rotten]

Yeah I checked it , with a light and monitored it from my obd2 scanner .
Like I said , if you put fuel in manually(propane, starting fluid) , it will start until the fuel you added manualy is exhuasted . Its definatley not a timing issue since when the car ran, it ran fine .

[rotten]

So now after rereading the posts:

Did you replace just the ignition module or the whole distributor?

Whole distributor from a junker that I witnessed run .

[econoaddict]

Whole distributor from a junker that I witnessed run .

Now thats not the answer I wanted to see

Sounds like you have covered the bases pretty well.
Next step? Maybe grab a used pcm and try it?
Local yard here lets me use and return one when needed.

[rotten]

Now thats not the answer I wanted to see

Sounds like you have covered the bases pretty well.
Next step? Maybe grab a used pcm and try it?
Local yard here lets me use and return one when needed.

I know ,right .
I'll have to see and whether they will let me do that , if not gotta find a friendly local with a 97 .

[ohsoslow]

just to try to catch up on this. you tested injecter pulse with a multimeter )same result as using a noid light) and there was zero pulse but had power?
my first point of intrests would be the cps. am i totaly off base?