ID injector values

[RavensFan7]

Trying to dial in some new injectors and I'm just not sure if I have all the new values plugged in. The spreadsheet from ID shows tables I can't find in Accesstuner. Not sure if the tables are called something different.....or maybe a different spot.....or maybe 16 bit doesn't have them, only 32?

Info:
02/03 wrx 16 bit ecu
ID1050x injectors

I have the scale and latency values plugged in, but can't find the tables the spreadsheet calls:
-"Fuel Injector Trim (small IPW)"
-"Fuel Injector Trim (Max. Small IPW)"
I have screen shots of the tables from the spreadsheet below, and also a link to the spreadsheet.






https://s3.amazonaws.com/cdn.freshde...2Fvnd.ms-excel

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[BURNING4ORCE]

You need to go on speed density mode to get that option. You can tune maf through there so you don't have to deal with the maf limitations.

[RavensFan7]

Originally Posted by BURNING4ORCE

You need to go on speed density mode to get that option. You can tune maf through there so you don't have to deal with the maf limitations.

Awesome, thank you. Was looking for that table all week.

I knew about SD/maf hybrid mode, but not the MAF only mode. Gonna have to look into that more because the additional tables seem very useful.

[RavensFan7]

The "small ipw" table was very helpful for idle. Wasn't too bad switching my map to the SD maf-mode, most of the tables are the same or only slight differences. Thanks!
----

Just have another related question:

For larger injectors, ID1050's in my case, I need to adjust pretty much all fueling tables with pulse width values, right? Initial tip out, overrun, cranking, fuel pump duty cycle pulse width, etc??

So...since the stock wrx injectors were 440cc and these are 1050cc, would reducing those tables by 50% be a good place to start? Just seems excessive.

I've already reduced the overrun initial value by like ~50% to help with the gunshots erupting from the exhaust....but haven't gotten around to the rest too much yet. I definitely think the fuel pump duty cycle "high" pulse width values need to be lowered. Takes a while for it to switch over from mid to high now.

Am I on the right track, or way off here?

[BURNING4ORCE]

50% is ball park and a good starting point and if you want you can probably reduce it less on the cranking. Important tables to touch upon are the cranking tables, tip-in enrichment, Closed/Open Loop Transition with Delay (Min. Base Pulse Width) and etc. Fuel pump you will have to play with just depends on the pump being run. Also set your afr learning#1 to never learn on the last range. You seem to have the grasp of it just experiment and see what works best.

[RavensFan7]

Originally Posted by BURNING4ORCE

50% is ball park and a good starting point and if you want you can probably reduce it less on the cranking. Important tables to touch upon are the cranking tables, tip-in enrichment, Closed/Open Loop Transition with Delay (Min. Base Pulse Width) and etc. Fuel pump you will have to play with just depends on the pump being run. Also set your afr learning#1 to never learn on the last range. You seem to have the grasp of it just experiment and see what works best.

Thank you for the reply. Had time to mess with most of these recently, and they seemed to make a nice little difference. The only one I didn't touch is cranking, but I haven't noticed any starting issues yet. Still gonna lower it next time I flash a new map and see what happens.

I also messed with the hot restart and warm up enrichment a little. Definitely helped the super rich swing after hot restarts, and the wandering idle/AFR's during warm-up.

Why do you mention setting the AF learning D, to not learn? Is that something people normally do with larger injector set ups, or are you just suggesting for me to try that in general?
....because I've been thinking about doing that, just wasn't sure yet. Not really a fan of it effecting OL fueling, but I wanted to read more into it first.

[BURNING4ORCE]

Originally Posted by RavensFan7

Thank you for the reply. Had time to mess with most of these recently, and they seemed to make a nice little difference. The only one I didn't touch is cranking, but I haven't noticed any starting issues yet. Still gonna lower it next time I flash a new map and see what happens.

I also messed with the hot restart and warm up enrichment a little. Definitely helped the super rich swing after hot restarts, and the wandering idle/AFR's during warm-up.

Why do you mention setting the AF learning D, to not learn? Is that something people normally do with larger injector set ups, or are you just suggesting for me to try that in general?
....because I've been thinking about doing that, just wasn't sure yet. Not really a fan of it effecting OL fueling, but I wanted to read more into it first.

Just something in general so it doesn't affect OL fueling overtime. In the past the option of having A/F Learning #1 Modify Airflow Limit (Max) was not defined at that time so the work around was setting a value higher in the D range than what's set on the factory airflow limit max.

[RavensFan7]

Originally Posted by BURNING4ORCE

Just something in general so it doesn't affect OL fueling overtime. In the past the option of having A/F Learning #1 Modify Airflow Limit (Max) was not defined at that time so the work around was setting a value higher in the D range than what's set on the factory airflow limit max.

Ah, I didn't know about that table, just raising the D range value.

I forgot to mention I have the CL/OL delay table zero'd out. So since there's no corrections or learning above 55-60~ g/s anyway.....does it really matter if I raise the D range value, or lower the MAX?

Factory 02/03 table looks like this:

(A-B) (B-C) (C-D)
5.60 | 10.00 | 50.00 | MAX = 120 g/s



I've been thinking about it too much now and it's starting to confuse me.....but maybe just bump D from 50 to 61 and set max to 60? This should stop AF learning from impacting OL right?

(A-B) (B-C) (C-D)
5.60 | 10.00 | 61.00 | MAX = 60.00

[my9999]

Originally Posted by RavensFan7

I've been thinking about it too much now and it's starting to confuse me.....but maybe just bump D from 50 to 61 and set max to 60? This should stop AF learning from impacting OL right?

(A-B) (B-C) (C-D)
5.60 | 10.00 | 61.00 | MAX = 60.00

Indeed

[BURNING4ORCE]

[RavensFan7]

Originally Posted by my9999

Indeed

I tried it and it seems to be working. No D learning yet.

Originally Posted by BURNING4ORCE

So you're saying either of these will work?

I wanted to bump D range to 60 g/s that way the ecu can learn all the way through closed loop. Since it does hit 50-60 g/s in CL sometimes, I figured it would be nice for the ecu to be able to learn if needed. Lowering max to 49 and keeping D range at 50 would stop the learning at 49.

....but that would still allow for corrections after 49, just not learning, right? It won't be at 50-60 in CL much regardless so it probably won't make much of a difference either way I guess.

Seems pointless to raise D range above 60 or so, since it will never be in CL at those values. Raising D range to 121 and keeping max at 120 would have the same effect as making D range 61 and max 60, right?...because no matter what it will be in OL by then.

I think.

[BURNING4ORCE]

Yes any way will work, just showing you examples, since your making all the change yourself you can set it to whatever air flow range you want for learning to stop on the D range as long as you follow protocol. From what I see you did exactly what I mentioned.

[RavensFan7]

Originally Posted by BURNING4ORCE

Yes any way will work, just showing you examples, since your making all the change yourself you can set it to whatever air flow range you want for learning to stop on the D range as long as you follow protocol. From what I see you did exactly what I mentioned.

Seems to be doing good so far after 150-200 miles. No D range learning. I guess if it happens to hit 60+ g/s in CL, I can bump it to 65-70. Should be good though.

I really appreciate the help. I try to figure this stuff out myself and not bug people with too many questions, but sometimes it's nice to double check with people that know more than I do....just to make sure I'm understanding things correctly. This tuning stuff can be quite the mind game.

[BURNING4ORCE]

Originally Posted by RavensFan7

Seems to be doing good so far after 150-200 miles. No D range learning. I guess if it happens to hit 60+ g/s in CL, I can bump it to 65-70. Should be good though.

I really appreciate the help. I try to figure this stuff out myself and not bug people with too many questions, but sometimes it's nice to double check with people that know more than I do....just to make sure I'm understanding things correctly. This tuning stuff can be quite the mind game.

D range is disabled the way you have it setup right now so your good. You can bump it up to whatever you feel works best for you. Just read up and continue to learn.