NO START HELP (2nd page) and higher load/higher rpm feels like rev limiter

[mzollo]

Inspect C191 on your harness it controls your injectors. Mine was fouled and caused similar issues of bucking and missing. Feels like a spark cut?

[saturnv7890]

Already soldered the c191 to bypass it, what else could it be?

[saturnv7890]

Here's a log:

http://depositfiles.com/files/riuz31zee

I can't tell if it's a sensor issue or a fueling issue. Maybe an expert can see this from the log? I replace the cps with a vemo which blunttech swears is the same exact thing as the OEM one


OH! Is my fuel pump on its way out? My car was at about 1/8th tank and sputtering like it was running out of fuel. I read somewhere that a bad fuel pump has a hard time pulling fuel up on a low tank?


.

[Bullet Ride]

OH! Is my fuel pump on its way out? My car was at about 1/8th tank and sputtering like it was running out of fuel. I read somewhere that a bad fuel pump has a hard time pulling fuel up on a low tank?


.

Hard to say unless you have a fuel pressure gauge. Add some gas and find out.

[saturnv7890]

Like a dumbass I bought a fuel pump, the car won't even start now. I can hear it prime, it must've been part of the problem. Now maybe something in my tune is messed up?

It cranks and cranks and sometimes catches and immediately dies. I did get to run at like high revs but then it died when I started to let the throttle go.


Any ideas? Is my tune fucked? Please help me!!
This is starting to get me a little frustrated and I have places I need/needed to be.

Tooth log:

http://depositfiles.com/files/q36x1pd2e

Log:

http://depositfiles.com/files/ygai85453

Tune:

http://depositfiles.com/files/bicj0hr0h

[saturnv7890]

If anyone could take a look at that data above that would be great!

I have some more info now after a busy weekend.


Fuel Pressure:
I put in a fuel pressure gauge, found that the fuel pressure won't stay after the system is primed (key clicked to "on"). It builds up pressure to 3 bar, then once the fuel pump stops, it goes back down to 0. Additionally, when I installed the fuel pressure gauge, the pressure line did not have much fuel left in it. It was certainly not under pressure. Is this characteristic of a bad FPR?

This video shows the behavior (processing right now.. should be up soon)

https://vimeo.com/69854561

I have not tried to start the car yet now because I am unsure the megasquirt is consistently receiving an RPM signal from the cps (brand new CPS, brand new shielded wires going to the ecu) I will run a stimulator test to see if this is a megasquirt issue.



Once these are figured out, I'll try to start. If no start, I'll test for spark.


Questions:
-Any input on possibilities?
-Should fuel pressure be held after system prime?
-Is my FPR bad?


EDIT:
Pinched the fuel return line and ran the pump, pressure shot up above 3 bar like expected, then once the fuel pump shut off, the pressure still went to 0. I think the FPR is fine and there just isn't a check valve on the new fuel pump? Intuitively this makes sense to me, all the pressure just goes back into the tank backwards through the pump.