Ted75zcar

iTrader: (2)

Is this the basemap from DIY? I would think that would be pretty baked out.

Have you tested the fuel pressure?

Ted75zcar

iTrader: (2)

Oh and incorporate AFR is not the same as EGO

18psi

iTrader: (76)

you have alpha-n enabled for your secondary fuel load with 100ve values accross the board
then you have it multiplying ve1 vs ve2

JaveStack

Going through the circuit, R33 and R18 are reading open... (active flyback clamp circuit?) Would this cause any issues?

JaveStack

Yeah.... I wanted to have it engaged but not doing anything so I could tweek it later if I was ready for that level of complexity.

JaveStack

Okay. Noted. So incorporate AFR allows AFR target to help adjust along with VE? EGO changes whatever is necessary to match the target?

JaveStack

Yes, base map from DIY

JaveStack

Im going to try and find a write up for how to test the active flyback clamp circuit parts. If anyone has a link they know of, that would be awesome, but Ill try to piece it together from the hardware manual.

Ted75zcar

iTrader: (2)

If you have an oscope, you can look at the injector low-side turn off. If it rings up and doesn't clamp, then the clamp isn't working. MS2 had a different clamp voltage than MS3, much lower I believe.

JaveStack

Yeah... havent invested in a scope yet. All my money went to the car... Is there a way to test it with a multimeter and an adjustable voltage source?

To ensure Im not chasing ghosts, this active flyback circuit is important for high-z injectors as well as low-z, right? Mine are 15ohm. I know the PWM flyback damping circuit isnt needed.

Ted75zcar

iTrader: (2)

Flyback is for any low side switched inductance. It prevents the switch from being overvoltaged. The injector acrually closes faster without it, or if the flyback voltage is pretty big (like the 36V in the MS3).

JaveStack

So what you're saying is that I dont need it? Or that it should be deleted?

JaveStack

I have not tested the fuel pressure. I hear the pump prime and the car was running super rich, so I wasnt thinking supply would be an issue.... IIRC not all cars run the same pressure.... is there a setting in MS to compensate for supply pressure? If I go grab a rental feul pressure gauge from Autozone, what should I be reading as "good"?

JaveStack

Should I just say "screw it" and run my stock ECU until my sequential injector card comes from JBPerf? I am fine with that, but just worried ill be wasting time sitting on my hands and still have this problem then too...

I'm coming up on 15 hours of troubleshooting and I'm gonna lose my mind.

Ted75zcar

iTrader: (2)

no, without it you blow up the injector drivers

JaveStack

According to some other forum posts and adaptronic educational material, my setup for semi-sequential is not optimal. Tomorrow Im going to switch to untimed injection, reset my VE table, and start over. I will let you guys know how it goes. Thanks for all the help thus far.

Ted75zcar

iTrader: (2)

~43.5 psi with the pump on and the engine off.

Ted75zcar

iTrader: (2)

Honestly man, it is unlikely to be fuel pressure. You PW is like1.6ms when it should be more like 3 or so with a req fuel of 12.1, VE of 50%, load of 30kpa, 100% fuel correction. For sequential, you need 4 separate drivers. If your HW only has 2 batch drivers, then you are probably getting way more squirts than you think.

Braineack

iTrader: (62)

look at my basemap.

semi-seq > untimed.

dont listen to aussies.

JaveStack

Where might I find the most recent version of this fabled document? You have about a gazillion posts on here and I don't want to mix up an old post as "correct" like I have in the recent past...