-= Ultimate Emanage Thread =-

[jj3kgt]

If I am thinking correctly maybe the acceleration map would help compensate for that?

How is the injector map working for you otherwise? Could you porivde a config file?

[BlackStealth]

Originally Posted by Jason_99ozGS

Basically about 10% more on the second log so I guess that would explain why it's running so much richer. Everything else though is very close (including the injector duty cycle input), but for some reason the output is just that much different between the two pulls.

If the ECU thinks there's knock, it'll dump extra fuel.

[Jason_99ozGS]

Originally Posted by jj3kgt

If I am thinking correctly maybe the acceleration map would help compensate for that?

How is the injector map working for you otherwise? Could you porivde a config file?

I thought the acceleration map was only for those first few seconds when you go WOT? I honestly don't know much about it, but I will look into it. Anything is worth a shot I guess. And the injector map has been working fine so far besides this issue I'm having. Here's my file with my maps, remember though for everycar it's different. It's definitely no where near 100% perfect, but it will be close if I can just figure out this issue I'm having.

http://www.laser-eclipse.net/images/Emanage.EM2

Originally Posted by BlackStealth

If the ECU thinks there's knock, it'll dump extra fuel.

Yea, but times before I tried running speed density when I've seen knock it's never put in so much fuel causing a 11.8 tune to be 10.0 or richer. Also at 9psi I hope I wouldn't be getting any knock (maybe some false knock), but next time I try this I'll bring my datalogger with me. Another thing is that I don't think it's the ECU dumping more fuel in because the injector duty cycle inputs were the same on both pulls, but the output was drastically different so I would suspect something in the EMU is making it add more fuel.

[BlackStealth]

Have you looked into the possibility that your rich AFR @ WOT is actually a misfire?

[RobBeck]

I would be tempted to remove the injectors from EMU cktry to see if it fixes the problem.... its not really necessary to run the injectors thru without the global correction function right? Are you using the global function or any of its associated parameters??

Originally Posted by Jason_99ozGS

Another thing is that I don't think it's the ECU dumping more fuel in because the injector duty cycle inputs were the same on both pulls, but the output was drastically different so I would suspect something in the EMU is making it add more fuel.

[RobBeck]

Blackstealth, just noticed you had this in another thread... think this is what he is experiencing too?

Originally Posted by BlackStealth

Also should you ever upgrade from stage 2 wiring to stage 3 wiring, most people have noted a significant change in AFR tune. I just wanted to let ya know in advance so you don't cause yourself some headaches down the road.

[BlackStealth]

Originally Posted by RobBeck

Blackstealth, just noticed you had this in another thread... think this is what he is experiencing too?

I'm assuming he didn't switch his emanage wiring (stage level) when comparing two datalogs.

[Jason_99ozGS]

Originally Posted by BlackStealth

Have you looked into the possibility that your rich AFR @ WOT is actually a misfire?

I don't think it's a misfire... It still pulls smooth even with the rich AFR. And I don't think a misfire would explain the difference between the injector duty cycle outputs being 10% off even though the emanage should be referencing the same cell on my map because the boost and RPM were the same.

Originally Posted by RobBeck

I would be tempted to remove the injectors from EMU cktry to see if it fixes the problem.... its not really necessary to run the injectors thru without the global correction function right? Are you using the global function or any of its associated parameters??

Yea I might have to end up tuning without using the injector map. Just leave it alone so the EMU isn't directly changing the injector signal in anyway. I think I can still leave the wiring hooked up how it is and tune with just the airflow output map instead of the injector map and it will probably work fine. At least it worked fine when I just tuned using airflow correction before I switched over to speed density. The only part that's going to suck is I have to figure out what the airflow output should be and I'll actually have to mess with the timing map to get it back to what it should be.

Also I never messed with the global injector sizing setting (maybe I was suppose to???). I just put in -18% adjustment on the injector duty cycle across the board and that was enough for the car to start and drive around well enough. I think the stock ECU adjusted its fuel trims and got just normal driving around perfect with -18% taken out. Under boost though I had to take out more and I was trying to tune it at different boost levels, i.e 7psi, 10psi, 12.5, 15, etc... Then I noticed the problem with the tune being inconsistent depending on how I entered boost. Anyways maybe I was supposed to enter the stock injector size and lag time and then enter the same information for the bigger injectors I have now. From what I understood though the global injector sizing just made it easier so your car would at least run without having the make any adjustments on the injector map. I guess I can give it a shot though. Does anyone right off hand know the lag time for stock injectors (I think it's in this thread so I'll dig through and look for it). Also does anyone know the lag time for a kind of PTE/Delphi style 650cc injector? I'll have to do some research and look, but I just thought I would ask incase anyone knew. Or if there's anyway to determine the lag time let me know because right now I'm not too sure!

EDIT:

Also I did a little calculations to find out by what % the EMU was adjusting the injector duty cycle in each log. Both logs reference the 6000rpm & 10psi cell highlighted in red on my map so you would expect the injector duty cycle to have a -36% reduction as the signal passes through the EMU. Some variance however I would expect based on surrounding cells and the fact that the data is interpolated because I'm not exactly at 6000rpm and 10psi in the logs. So the first log shows a -33% reduction of injector duty cycle and the second log shows a -16.6% reduction of injector duty cycle. And that's no where near what I have entered into my maps as my desired value.

I think I saw a phone # for Greddy once... I wonder if I should try calling them, but I have no idea if they even answer questions like this or not. I guess it won't hurt to try though because either something is wrong with my EMU or I'm completely missing out on something.

[jj3kgt]

Originally Posted by Jason_99ozGS

EDIT:

Also I did a little calculations to find out by what % the EMU was adjusting the injector duty cycle in each log. Both logs reference the 6000rpm & 10psi cell highlighted in red on my map so you would expect the injector duty cycle to have a -36% reduction as the signal passes through the EMU. Some variance however I would expect based on surrounding cells and the fact that the data is interpolated because I'm not exactly at 6000rpm and 10psi in the logs. So the first log shows a -33% reduction of injector duty cycle and the second log shows a -16.6% reduction of injector duty cycle. And that's no where near what I have entered into my maps as my desired value.

I think I saw a phone # for Greddy once... I wonder if I should try calling them, but I have no idea if they even answer questions like this or not. I guess it won't hurt to try though because either something is wrong with my EMU or I'm completely missing out on something.

This seems very interesting. Go ahead and call them, they better support their product! If nothing else maybe they can at least explains just how it calculates instead of helping you tune ( becuase they may just try to send you to an authorized tuner).

I had trouble with global injector sizing, I would leave all of thouse fields at 0.

[Jason_99ozGS]

Someone on the yahoo Emanage group wrote this so I'm going to try it out...

Just a guess, but try using duration instead of duty cycle. I know
when I was messing with the extended rev-limiter, it made a world of
difference. The EU has issues converting duty cycle to duration, so
make sure your map values are what you calculate, not the EU.

Alex