The value in AP is 15. What is the value that everyone had been using in the ECUFlash formulas?

 

That value adjusts how the Injector Latencies display.

But does the AP allow you to adjust the Minimum Pulse Width? Minimum Pulse Width has nothing to do with "Injector Latency (Base Multiplier)". Does it?


Edit: 15 is what I have in all my definitions for EcuFlash.

 

Yes ap has tables to adjust the min ipw. Was providing the latency value to kozmic at his request.

 

Ahh, I see it now.

They also have a Min IPW by RPM table. I've never seen that one before.

 

Its part of their latest release that came out a few weeks ago, so pretty much brand new.

 

The problem is that the ECU uses "different" minimum IPW's depending on condition.

ie idle is different from throttle let-off, it's also different on SST vs 5MT

So like I said before, my patch sort of coalesce's these patchs to TWO Minimum IPW values.

Regarding that RPM vs M-IPW table - all the values were the same so I figured its ok to skip it

 

I'm getting some random misfires and cyl 1 misfires here and there with my newly installed DW1500cc injectors. Looks like my solder job wasn't all that great so I'll have to redo at least #1 and see if it helps.

How is the throttle tip in on the FIC1680's? I had to do some MAF compensation for MAF voltage values just above idle from 1.5v up to about 2.0v to avoid having it go to 17.0 AFR's and bog the car. I think I have them mostly dialed in on pump gas now but big injectors can be a real pita.

E85 should settle them down a bit but I won't switch over until spring arrives. Part of the problem is that most of the bigger injectors don't flow much more than the smaller ones at low duty cycles so the transition from idle to light throttle gets really ugly at times with high injector scaling.

 

The only accommodation I've made for the injectors is latency and scaling. I haven't driven it, but sitting in the passenger seat, tip-in seems fine. I've asked 3dman1 several times as well, and he says tip-in is good. Its a good thing too because the 6-puck clutch is about as close as possible to a lightswitch, and he usually engages the clutch at ~1300-1400 rpm when pulling away from a stop.

 

What IPW are you guys seeing for 2.0 and 2.3 @ idle?

 

I'm seeing 1.28 ms on Cobb AP. It pretty much is always exactly 1.28 ms no matter what the STFT or idle trim is doing. Don't know if its a resolution limitation in the logged value or in the actualy IPW value itself.

 

does the STFT/LTFT drift and then reset (like a sawtooth)?

In EvoScan (after my patch) you can see the logged IPW go down to whatever minimum/resolution you specify...

 

Yes, I've seen the reset event when the STFT drifts to its max negative value. Interestingly, it seems to happen a few times when the idle is settling, and then the STFT is spot-on after a few seconds. No change in the displayed IPW during any of this.

 

Well if you have an OP20 I would try logging 2byte IPW and making sure the AP patch is working.

It would seem like 1680's require just under 1.256ms at idle...