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testing the new FIC 1100 cc/min saturated injectors

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Old Mar 27, 2012 | 05:04 AM
  #76  
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Originally Posted by fireroasted
Thanks, For other quick reference, I think you mean this....

https://www.evolutionm.net/forums/ec...ion-table.html
Yes, that's the table.
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Old Mar 27, 2012 | 05:23 AM
  #77  
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Originally Posted by Z_Lancer_Man
PrimerSdime/mrfred - I've been running your values for a couple of weeks now. My mid trims have been between -3 and +2 %. However, one issue I've noticed is that when I am cruising along and I let off the gas, my wideband shows I go super rich - like 8.9-9.0. Should I reduce the latency at 11.7 volts or is there something else that would cause the rich condition on decel? I plan to flash the fuel pump table updates tomorrow.
The 11.72 volt latency values have little to no impact while the engine is running because your charging system is typically going to charge around 14.0-14.2 volts. The 11.72 volt latency value is going to have the most impact during cranking.
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Old Mar 27, 2012 | 09:56 AM
  #78  
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Originally Posted by PrimerSdime
The 11.72 volt latency values have little to no impact while the engine is running because your charging system is typically going to charge around 14.0-14.2 volts. The 11.72 volt latency value is going to have the most impact during cranking.
Makes sense...
I flashed the fuel pump high/low voltage table this morning and then did a 30 minute log on the way to work this morning. About 10 minutes (the middle 10) is cruising on the freeway at 80 MPH. Looks like my mid trims have stabalized to +1.75%, which isn't bad! Also, it appears that the throttle release rich condition has improved.
Attached Thumbnails testing the new FIC 1100 cc/min saturated injectors-2012-03-27-log.png  
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Old Apr 9, 2012 | 12:39 AM
  #79  
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Originally Posted by PrimerSdime
Log those trims after you flash my scaling/latency values and get back to us. I'm curious to see what the results are.
OK, Used your values for scaling and latencies. All long cruises at average of 2800 rpm


Log1: -.5 to .9


Log2: 1.75 to .39


Log3: .9 to 4.1


Log4: 4.1 to 1.93


Injector Latency is essentially pegged at 42 (occasional 41 and 43). I can't find in the log why it wandered up to 4.1 and a bit back down. I included a zip of the 4 log files in case battery voltage or IPW values give better direction. To be honest I don't yet understand the IPW, or how I might need to edit that. I changed the extension to pdf, so just change it back to zip.
Attached Files
File Type: pdf
EvoScanDataLog.pdf (772.0 KB, 0 views)
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Old Apr 9, 2012 | 08:54 AM
  #80  
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@fireroasted - looks like the links to your images are bad
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Old Apr 9, 2012 | 09:17 AM
  #81  
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Originally Posted by Z_Lancer_Man
So I swapped out my injectors last night and installed these bad boys. I flashed these new values and idled. STFT is pegged at -25%... Wideband is reporting ~11.2 AFR at idle. What do I need to change? Scaling or latencies?

Originally Posted by GregM
Increase Scaling
Originally Posted by PrimerSdime
Your latencies at 14 volts are way too high.

Try the values that I posted above, my car used to do the same thing. I bet if you drive the car your mid trims will be much closer to 0 because the scaling is where it needs to be.

I am having the same, rich at idle, issue with my FIC 1050s...I upped the scaling & that brought the a/f to low 11s at idle. My warm & cold starts seem great so I figured my latencies were good to go. If I change my latencies at all (higher or lower) the car will start & then die or start & barely idle. When I get home from work I'll check out my latencies at 14 volts. I did a boost leak test too & I have one small leak at my bov but that should have nothing to do with my very rich idle. If anyone else has other suggestions let me know, thanks.
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Old Apr 9, 2012 | 10:21 AM
  #82  
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Originally Posted by Z_Lancer_Man
@fireroasted - looks like the links to your images are bad
Are you certain. I see them, and for all my posts, and I checked them from several different internet connections via home, remote, and other via RDP. Is anyone else not seeing my images above?
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Old Apr 9, 2012 | 10:24 AM
  #83  
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Originally Posted by fireroasted
Are you certain. I see them, and for all my posts, and I checked them from several different internet connections via home, remote, and other via RDP. Is anyone else not seeing my images above?
I see them fine...
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Old Apr 12, 2012 | 04:41 PM
  #84  
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I am trying to see about some comments on setting up these injectors based on logs I can provide. Above are the results from cruise and here they are at idle. At idle they start real close to zero, but then steadily wander up. Both sessions I have done for considerable amounts of time just keep creeping up. Is that an indication of anything else set incorrectly.

Can some share what their latency values are at idle and cruise, IPW, once they have things setup properly? Thanks! {thumb up}

idle
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Old Apr 12, 2012 | 06:14 PM
  #85  
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The trims will change with air temperature, humidity, engine temperature, ethanol content in the gas, etc. They are there to make up for the small inaccuracies in the calibration curves and imperfections in fuel and air metering. The most people's goal is to have the trims hover between -4% and +4%, and in fact, if you can get that, you're doing pretty good. I tinker quite a bit, and my trims drift no more than 4% total. Not that it matters though.
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Old Apr 12, 2012 | 06:44 PM
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Thanks {thumb up}

I have logged continuously for the last couple of weeks just daily driving, and they are essentially doing the same thing. If they functioning like this does that mean by definition I don't need to worry about or mess with the IPW settings, or does that come into play at WOT tuning and reading the AFR?
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Old Apr 12, 2012 | 07:48 PM
  #87  
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Originally Posted by fireroasted
Thanks {thumb up}

I have logged continuously for the last couple of weeks just daily driving, and they are essentially doing the same thing. If they functioning like this does that mean by definition I don't need to worry about or mess with the IPW settings, or does that come into play at WOT tuning and reading the AFR?
if your idle and cruise trims are staying within -4% to 4%, then you're done by most tuner's standards. if you haven't tweaked the mid<->high trim crossover point, your cruise trim is affecting wot fuelling.
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Old Apr 13, 2012 | 01:20 AM
  #88  
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OK, based on that I did some searching and reading. I read this thread.

https://www.evolutionm.net/forums/ec...m-control.html

Not sure I got it completely on first going over but the theory is to widen the range of it jumping into LT High.?

if you can direct me to other threads for me to ramp up on that I'll do the homework. Thanks
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Old Apr 13, 2012 | 07:10 AM
  #89  
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Those are the trim tables. Now search on some thing like "stop fuel trims from affecting WOT afr"
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Old Apr 14, 2012 | 01:08 AM
  #90  
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Thanks Cool stuff. tephra thread link below.

As a comment on the FIC 1100s, with the 943 scaling it idles and cruises like stock. starts every time, cold or warm.

Should I be clearing the trims every time I log even though I haven't reset the scaling or changed anything. I am working on seeing if I can get them closer to 0 than they wander now, in part to help with that below mod. Or should I leave them if I haven't changed anything and log from there?

https://www.evolutionm.net/forums/ev...t-fueling.html
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