Now attempting 2-bar SD: Problems and questions!
Now attempting 2-bar SD: Problems and questions! Im a complete newb at this except for what I have been able to read in my research efforts over this last couple of weeks, so any and all help appreciated. 
Basically, I set SD parameters(I think) and then tried to start the truck, w/out the maf. I will list the steps I have taken below:
1: Set maf fail to 0 and disabled the SES lights for MAF codes P0101, P0102, P0103, P0106-P0108 set to 'x' and No MIL
2: (CAFR = 12.1) changed all points to 1.21
3: Disabled closed loop
4: Copy High Octane table to the Low Octane Table
5: Disabled PE mode
6: Scaled MAP scaler to read 50kPa when key on, ended up with value of 93.0, with my sensor.
7: Bypassed the barometric pressure updating
Next, I cleared the fuel trims and tried to start the truck. It started, but would hardly run and was trying to idle at around 400 rpm, with the wideband showing like 16:1.
Here are a few of my present questions:
1: What other tables do I need to change to reflect the new "halved" map values? Ross(EFILive) mentioned something about the LTFT matrix etc.
2: What else do I have to adjust to get a reasonable idle?
3: Once I get the VE 'auto-adjusted'(EFILive) what do I do next as far as fueling goes? Do I just re-enable closed loop and PE?
4: I know I have other questions I forgot about, but these are the ones that come to mind.
Thanks in advance for any and all sugestions.
Basically, I set SD parameters(I think) and then tried to start the truck, w/out the maf. I will list the steps I have taken below:
1: Set maf fail to 0 and disabled the SES lights for MAF codes P0101, P0102, P0103, P0106-P0108 set to 'x' and No MIL
2: (CAFR = 12.1) changed all points to 1.21
3: Disabled closed loop
4: Copy High Octane table to the Low Octane Table
5: Disabled PE mode
6: Scaled MAP scaler to read 50kPa when key on, ended up with value of 93.0, with my sensor.
7: Bypassed the barometric pressure updating
Next, I cleared the fuel trims and tried to start the truck. It started, but would hardly run and was trying to idle at around 400 rpm, with the wideband showing like 16:1.
Here are a few of my present questions:
1: What other tables do I need to change to reflect the new "halved" map values? Ross(EFILive) mentioned something about the LTFT matrix etc.
2: What else do I have to adjust to get a reasonable idle?
3: Once I get the VE 'auto-adjusted'(EFILive) what do I do next as far as fueling goes? Do I just re-enable closed loop and PE?
4: I know I have other questions I forgot about, but these are the ones that come to mind.
Thanks in advance for any and all sugestions.
TECH Apprentice
Joined: Apr 2002
Posts: 308
Likes: 0
From: Austin, TX
Originally Posted by BlownAlaskan
Im a complete newb at this except for what I have been able to read in my research efforts over this last couple of weeks, so any and all help appreciated.
Basically, I set SD parameters(I think) and then tried to start the truck, w/out the maf. I will list the steps I have taken below:
1: Set maf fail to 0 and disabled the SES lights for MAF codes P0101, P0102, P0103, P0106-P0108 set to 'x' and No MIL
2: (CAFR = 12.1) changed all points to 1.21
3: Disabled closed loop
4: Copy High Octane table to the Low Octane Table
5: Disabled PE mode
6: Scaled MAP scaler to read 50kPa when key on, ended up with value of 93.0, with my sensor.
7: Bypassed the barometric pressure updating
Next, I cleared the fuel trims and tried to start the truck. It started, but would hardly run and was trying to idle at around 400 rpm, with the wideband showing like 16:1.
Here are a few of my present questions:
1: What other tables do I need to change to reflect the new "halved" map values? Ross(EFILive) mentioned something about the LTFT matrix etc.
2: What else do I have to adjust to get a reasonable idle?
3: Once I get the VE 'auto-adjusted'(EFILive) what do I do next as far as fueling goes? Do I just re-enable closed loop and PE?
4: I know I have other questions I forgot about, but these are the ones that come to mind.
Thanks in advance for any and all sugestions.
Basically, I set SD parameters(I think) and then tried to start the truck, w/out the maf. I will list the steps I have taken below:
1: Set maf fail to 0 and disabled the SES lights for MAF codes P0101, P0102, P0103, P0106-P0108 set to 'x' and No MIL
2: (CAFR = 12.1) changed all points to 1.21
3: Disabled closed loop
4: Copy High Octane table to the Low Octane Table
5: Disabled PE mode
6: Scaled MAP scaler to read 50kPa when key on, ended up with value of 93.0, with my sensor.
7: Bypassed the barometric pressure updating
Next, I cleared the fuel trims and tried to start the truck. It started, but would hardly run and was trying to idle at around 400 rpm, with the wideband showing like 16:1.
Here are a few of my present questions:
1: What other tables do I need to change to reflect the new "halved" map values? Ross(EFILive) mentioned something about the LTFT matrix etc.
2: What else do I have to adjust to get a reasonable idle?
3: Once I get the VE 'auto-adjusted'(EFILive) what do I do next as far as fueling goes? Do I just re-enable closed loop and PE?
4: I know I have other questions I forgot about, but these are the ones that come to mind.
Thanks in advance for any and all sugestions.
I would just run with the maf/stock map for now and add fuel for the blower with pe vs rpm.
BTW, what did you MAP read at idle? That is most likely the problem area.
Originally Posted by BlownAlaskan
Txhorns281: As a general rule, what are the idle areas of the VE?
QuickSilver2002: I am using the custom operating system.
QuickSilver2002: I am using the custom operating system.
I dunno bout your MAP, but you should be able to see that on your scanning tool, either way you can make full column adjustments and tidy up spots later. Was it consistently running 16.0 AFR even after you got up to operating temps? And just to make sure, you changed CAFR i nthe OLFA table right? right!
Ok, I got it to idle by raising the idle speed and raising the ve values in the <1200 range. I changed the CAFR values in Flashscan's (EQratio while in open loop) table. WBAFR was around 14-15 during my short drive while the commanded showed 12:1. This seems really off to me. I can just raise the VE values in the correct range to offset the fueling error, correct? This is exciting, runing w/ no MAF.
Originally Posted by BlownAlaskan
Ok, I got it to idle by raising the idle speed and raising the ve values in the <1200 range. I changed the CAFR values in Flashscan's (EQratio while in open loop) table. WBAFR was around 14-15 during my short drive while the commanded showed 12:1. This seems really off to me. I can just raise the VE values in the correct range to offset the fueling error, correct? This is exciting, runing w/ no MAF.
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Sorry, two last questions: What about table smoothing each time I adjust my VE? Do I just grab the region I just adjusted and then hit my smooth button? Also, do I want to reset my trims after each VE change?
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Originally Posted by BlownAlaskan
Sorry, two last questions: What about table smoothing each time I adjust my VE? Do I just grab the region I just adjusted and then hit my smooth button? Also, do I want to reset my trims after each VE change?
Originally Posted by BlownAlaskan
I can adjust individual VE cells if that is what you mean, otherwise, I have a whole array of smoothing options. How do I learn how to hand smooth?
The trick is to follow the natural shape/flow of the 3D model. Cam overlap, and long tubes, and other mods can make it seem like ridges and wierd peaks should form in the model, but if it looks offset from most other surrounding values, I would follow the lead of the trendsetters
Originally Posted by SS2win
EFILive has a new autotune feature that will dial in your VE automagically. Check out
this post on their forum...
this post on their forum...
And you still ought to hand smooth regardless of these auto functions, there will still be areas that don't fall completely inline and rather than do a global smooth factor that may take into account your extremeties, thus skewing other more stable adjustments, you can take care of the problem independently from other VE cells. Last edited by txhorns281; May 16, 2005 at 06:12 PM.