im going to say your plug ground is bad.

if all else fails, ask it nicely.

 

What MSD box are you using?

 

I am pretty sure the ground for the injectors is done though the ECU, which I re-grounded

 

Msd-dis 2

 

You need to go back through the Autronic installation. The MSD box won't effect the fueling. Is the ECU getting a signal from the crank? It should have a diagnostic table to check sensor (trigger) inputs and output signals.

 

That was the first thing that popped into my head, the crank position sensor.

Subys don't use cam sensors do they?

 

Subaru's do use cam sensors, but it doesn't matter in this case, since he's using a standalone engine management unit.

 

I am getting an RPM signal on my laptop, so I assume there is a signal from the crank. Looking through the error log there is nothing other than coolant temp. Autronic installation is good.

 

Yeah, my cam position sensor is connected and my car will not start when it is disconncted (past experience).

I am just wondering why everything is working except for the F'n injectors. It does not make any sense.

 

Did you try the noid light like Artie suggested over on nasioc?
Did you add fuel as suggested?
Are your new injectors the same resistance?

 

Just sent a datalog of me trying to start my car to my Autronic Dealer and he says everything looks good. Kind of at a loss here.

 

I had tested the noid light before even posting the problem. Does not light up just using the harness itself, but if I take the ground and move it to the chassis there is voltage. My Autronic Dealer told me that is normal as there is a constant voltage moving through the injector harness at all times. What is not normal is that the ground is not working.

My next mission is going to be taking the top part of the motor off and disassembling the harness to see if there is any foul play.

 

try carb cleaner and see if it fires. go back to the basics , air, feul, spark.


whoops totally read it wrong. you check batt. voltage?

 

i assume the autronic uses a cam sensor? Is that reading also. Most Standalone (AEM, Hydra, Link) that I have used just look at the crank sensor for rpm signal. If the car is wasted spark it might not even look at the cam signal for spark either. But the injectors should be sequential so it would need a cam signal. Any way to log that?

Could also be the wrong cam gear? Is the EM made for a wrx style motor or a RS style motor?

 

Good ideas Brydon. I am running a wasted spark setup, so the cam position sensor is not going to help, even though it is getting signal. As far as the gear goes, that is the same one I have used for the life of my car, so I really doubt it is that. Best guesses I have had so far though.

 

100% sure it is not getting fuel? Sometimes with new spark plugs it is nearly impossible to tell if fuel is getting on them if the spark plugs are not trying to light the fuel.

But it sounds like you have the answer. You have 12v on the injectors and the standalone is not adding the ground to make them fire. So if the continuity is good on the wires (odd that all 4 would go bad) and nothing has changed with the setup (IE the ecu is tuned the same as prior) then the ecu could be bad. But that also seems odd.

You said you had a coolant temp error on the standalone? IF the sensor is bad or reading way off it could make the ecu put little or no fuel out also. Like if it thinks it is -217 degrees or something. Have you tried fixing or clearing the error?

 

Know anyone w/ similiar injectors ? maybe you can swap em to eliminate

 

Already eliminated the injectors. They open and close with 12v power source.

Anyone that knows where all the engine grounds are I would greatly appreciate your input.

[x] Main ground coming from the battery
[x] Main ground coming from engine wire harness

These are the two main ones that I know of. Any other critical grounds under the hood? I know there are a bunch of Misc grounds, but those would really not affect the performance of the injectors.

 

Well after another weekend in the garage there is no more progress. I did take the cover off the ECU to make sure the circuitry was good, and it was. I check the continuity of the injector wires from the ECU to the engine harness, also good. I checked the continuity of the injector wire harnesses and all of them have 12v on one side and .6**v to .7**v on the other. Everything looks as though it is correct. Why the injectors will not fire is besides me. I have gone over my CAL file a number of times and also had my dealer go over it. We can find nothing wrong. ???

Just an update.

 

I believe I found the problem. The wire I had tested for the 12v power source was going nowhere. The wire that was suppose to be supplying 12v was only giving off enough to make the OHM meter dance a little bit (guessing the connection got fried somewhere between the ECU and the engine harness). I swapped the lines on the engine harness and now I have 12v at the injector w/ signal. Tried the test light and it works, but it is very faint. Not sure how bright it is suppose to get, but it is turning on slightly.

Guess all things considered it is progress. Now I just have to find the balls to try and start it. Cant stand to be disappointed again.

 

bump for one sick nasty car that is running!

11k RPM FTW!!!