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Injector scaling and latecy for different injectors.

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Old Feb 11, 2008 | 01:06 PM
  #346  
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no problem ... best of luck
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Old Feb 12, 2008 | 11:47 AM
  #347  
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OK this is driving my nuts. I have FIC 850s. All of the LTFT (low, mid and high) are dead on 100 in evoscan and 0 in mitsulogger. I logged a good 15 min cruise and 15 min idle all is good there. My STFT is for the most part -/+ 5 in mistulogger and -/+ 10 in evoscan. Until the fan kicks on or off then it goes to double digits in mitsulogger and anywhere from 150 to 62 in evoosan. I would realy like to fix this but I am not sure it can. Whats really driving me crazy is my a/f at idle Again for the most part I am between 14.3-15.5 but it dips often to 11s-18s but not for a long period of time. I am I being to paranoid? Any thoughts would be great and especially those who have seen the logs
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Old Feb 12, 2008 | 11:50 AM
  #348  
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From: Secret Tweaker Pad
Originally Posted by kreionic
OK this is driving my nuts. I have FIC 850s. All of the LTFT (low, mid and high) are dead on 100 in evoscan and 0 in mitsulogger. I logged a good 15 min cruise and 15 min idle all is good there. My STFT is for the most part -/+ 5 in mistulogger and -/+ 10 in evoscan. Until the fan kicks on or off then it goes to double digits in mitsulogger and anywhere from 150 to 62 in evoosan. I would realy like to fix this but I am not sure it can. Whats really driving me crazy is my a/f at idle Again for the most part I am between 14.3-15.5 but it dips often to 11s-18s but not for a long period of time. I am I being to paranoid? Any thoughts would be great and especially those who have seen the logs
Are you letting the car warmup enough before logging? I let it idle for like 20 minutes, then throw on the laptop to log the idle and come back 20 minutes later.


EDIT: Are your LTFT's still at 100 when your STFT is all over the place?
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Old Feb 12, 2008 | 11:52 AM
  #349  
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^^Of course. The car is fully warm before I do any logging at least a 15-20 min of driving first
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Old Feb 12, 2008 | 12:02 PM
  #350  
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I still think your fuel trims all being at 0 is very very odd. I have *NEVER* seen an evo with all three at 0, no matter what.

Actually I have, one's with dead or disconnected 02 sensors.

Your front 02 cycles correctly right?
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Old Feb 12, 2008 | 12:07 PM
  #351  
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Originally Posted by razorlab
I still think your fuel trims all being at 0 is very very odd. I have *NEVER* seen an evo with all three at 0, no matter what.

Actually I have, one's with dead or disconnected 02 sensors.

Your front 02 cycles correctly right?
Agreed 100% Yes front o2 is still reading without any issues and no cel either
I still have your email. I will send you a 15 min idle log now
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Old Feb 12, 2008 | 12:38 PM
  #352  
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Originally Posted by TeStUdO


EDIT: Are your LTFT's still at 100 when your STFT is all over the place?

Yes this is what is so frusterating. And I have no cel for the front o2 sensor and seems to be working correctly

Last edited by kreionic; Feb 13, 2008 at 03:11 PM.
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Old Feb 12, 2008 | 03:02 PM
  #353  
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From: Spec-Ops Motorsports, Fayetteville, NC
Originally Posted by razorlab
I still think your fuel trims all being at 0 is very very odd. I have *NEVER* seen an evo with all three at 0, no matter what.

Actually I have, one's with dead or disconnected 02 sensors.

Your front 02 cycles correctly right?
thats what i said... he is a lucky guesser lol
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Old Feb 18, 2008 | 09:35 PM
  #354  
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Originally Posted by kreionic
OK this is driving my nuts. I have FIC 850s. All of the LTFT (low, mid and high) are dead on 100 in evoscan and 0 in mitsulogger. I logged a good 15 min cruise and 15 min idle all is good there. My STFT is for the most part -/+ 5 in mistulogger and -/+ 10 in evoscan. Until the fan kicks on or off then it goes to double digits in mitsulogger and anywhere from 150 to 62 in evoosan. I would realy like to fix this but I am not sure it can. Whats really driving me crazy is my a/f at idle Again for the most part I am between 14.3-15.5 but it dips often to 11s-18s but not for a long period of time. I am I being to paranoid? Any thoughts would be great and especially those who have seen the logs
I would think your latency table is off (i.e the values need adjusting). When the fan comes in battery voltage changes throwing things off.
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Old Feb 18, 2008 | 10:09 PM
  #355  
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Originally Posted by wreckleford
I would think your latency table is off (i.e the values need adjusting). When the fan comes in battery voltage changes throwing things off.
+1
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Old Feb 28, 2008 | 01:58 AM
  #356  
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FIC 750´s dialed in?

Has onyone got a voltage latency chart for FIC 750´s ?
// Lars
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Old Feb 28, 2008 | 06:56 AM
  #357  
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From: Slc Utah aka SL,UT
Originally Posted by Malmoe_Sweden
Has onyone got a voltage latency chart for FIC 750´s ?
// Lars
It would probably be fairly close to my 720's if you wanted to start there
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Old Feb 28, 2008 | 07:03 AM
  #358  
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Originally Posted by Malmoe_Sweden
Has onyone got a voltage latency chart for FIC 750´s ?
// Lars
Here's a good starting point:

Scaling: 650

Voltages - Latency
4.6875 - 3.312
7.03125 - 1.68
9.375 - 1.032
11.7188 - 0.84
14.0625 - 0.552
16.4062 - 0.456
18.6768 - 0.36
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Old Feb 28, 2008 | 08:09 AM
  #359  
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From: Spec-Ops Motorsports, Fayetteville, NC
id think the scaling number would be higher, but i will test these out soon as i have a guy that will be using these same injectors
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Old Feb 28, 2008 | 08:37 AM
  #360  
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Thank´s alot guys. Since I am using E85 I think they still need some adjustments for my use. But It will save me a lot of time.

// Cheers Lars
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