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sd tuning efi-live corvette car wont idle

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Old 04-24-2008, 06:20 PM
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Default sd tuning efi-live corvette car wont idle

well i am trying to tune my corvette with efi-lives autoVE but i cant seem to get my car to idle in speed density mode. so i saved the log file of the car warming up, and i have the tune file it is running. i have adjust the sd map w/ autoVE once already but it didnt get any better. list of mods on the car are
1999 corvette
408ci
afr 225
fast 90
ls2 tb
42lbs injectors fuel pressure @59psi
215/219 .645/.649 cam
no cats
manual trans

any ideas what to fix to get it to idle. this log was with the car still warming but it doesnt get any better when it warms up
Attached Files
File Type: efi
sd tune no idle.efi (8.0 KB, 106 views)
File Type: tun
SDAutoVE.tun (471.5 KB, 115 views)

Last edited by n2oJOE; 04-24-2008 at 06:29 PM.
Old 04-24-2008, 07:35 PM
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B0104 should be 835.7402625

Looks like you added ~15% across your back up VE table, but not the primary. Starting with a stock VE table, try adding 13% or 10% to both the primary and backup VE tables. When you apply the BEN corrections, be sure you apply the Backup map to the Backup VE table and Primary map to the primary VE table.

You may want to consider upgrading to an '02 OS to make the tuning process a bit simpler. www.holdencrazy.com has a stock '99 calibration migrated to the '02 OS.
Old 04-24-2008, 09:55 PM
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Originally Posted by TAQuickness
B0104 should be 835.7402625

Looks like you added ~15% across your back up VE table, but not the primary. Starting with a stock VE table, try adding 13% or 10% to both the primary and backup VE tables. When you apply the BEN corrections, be sure you apply the Backup map to the Backup VE table and Primary map to the primary VE table.

You may want to consider upgrading to an '02 OS to make the tuning process a bit simpler. www.holdencrazy.com has a stock '99 calibration migrated to the '02 OS.
well im not starting with a stock ve table i had this car tuned already but i was not happy with cruise or idle so i am trying to improve the tune that was in it. should i not start with the tune that was in it. i was running pretty good b4. im going to post the original tune, the first sd tune and the modified sd tune.
Attached Files
File Type: tun
File Type: tun
SDAutoVE.tun (471.5 KB, 99 views)
Old 04-24-2008, 10:02 PM
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also the way the tutorial reads is to only modify the back up ve table and not the primary for the 99 pcm??? im kinda cofused if i should have modifed the primary ve also... and would i be ok using this tune i had on the car?? thanks for the help in advance!!!
Old 04-25-2008, 06:38 AM
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Originally Posted by n2oJOE
also the way the tutorial reads is to only modify the back up ve table and not the primary for the 99 pcm??? im kinda cofused if i should have modifed the primary ve also... and would i be ok using this tune i had on the car?? thanks for the help in advance!!!
Your best bet for running speed density will be to upgrade to the 2002 corvette OS as TA Quickness stated, it does away with the backup VE table all together.

Have you messed with desired airflow? this most likely will be the area you need to adjust to get it to idle properly
Old 04-25-2008, 02:47 PM
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I had to upgrade my 2001 to a 2002 OS before I could go to COS5. It is just a lot of copy and pasting. Not hard.

Good luck.
Bill
Old 04-25-2008, 08:07 PM
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yea thats my project for tonight switch over to the 02 os.... fun haha
Old 04-26-2008, 05:47 AM
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If you start with the '99 to '02 tunes off www.holdencrazy.com, it should only be a matter of copying a few tables.
Old 04-27-2008, 01:55 PM
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well just finished working on the car alittle.... not happy at all. switched the OS to an 02 os, copied all the tables over and went back threw and adjusted it all to run autoVE and still acannot get the car to idle. any time i let off the throttle and the throttle closes more then 18-19% my car just dies. i saved a log of me just trying to keep the car running giving it throttle. i also was trying to adjust the main ve table and spark to see if any of this would help it idle and nothing helped. also on the tune i pulled out of the car it was way to rich and fouled my plugs. so these are fresh tr6's gapped to 35. please help lol!!!! im getting a big *** headache.
Attached Files
File Type: tun
modTUNEo2oSDautoVE_0002.tun (474.9 KB, 75 views)
File Type: efi
warm idle wmaf wont run.efi (17.7 KB, 73 views)
Old 04-27-2008, 02:13 PM
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Try this.
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File Type: tun
modTUNEo2oSDautoVE_update.tun (475.3 KB, 117 views)
Old 04-27-2008, 02:58 PM
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seem like its way rich and was worse compaired to throttle% still dies bad. heres the log of that.
Attached Files
File Type: efi
jacob tune no idle.efi (12.8 KB, 94 views)
Old 04-27-2008, 03:12 PM
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No idea. Change the B0104 value like TA Quickness said, I didn't realize it wasn't changed. Try searching/posting on the actual EFI Live forum, might find more info.




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