Mrbowtie26

iTrader: (3)

in ls1 edit what table has to be changed for cold start and open loop idle ? Trying to smooth out cam I have in a little.
Thanks
Ron H

Mrbowtie26

iTrader: (3)

anyone ?

Sean Collins

There should be a Open Loop AF multiplier 3d table the name will change with software brands but it should have at least load in KPA and AF modifiers values like 1.028 etc and tempature on one axis. Higher values usually add fuel lower value take fuel out. 1.000 if the MAF has not been altered and the ducting isn;t horribly hsould be 14.7:1 regardless of what your wideband says unless you have large nonstock injectors with alot of trasient voltage lag issues.

brad8266

iTrader: (23)

Its called Fuel air multiplier in LS1 Edit. That should help ya out.

Mrbowtie26

iTrader: (3)

Ok, thanks for the help all.

Mrbowtie26

iTrader: (3)

With the fuel air multiplier table what Kpa readings should I change for idle to reduce fuel and help idling ? Im having problems keeping it idling, I have to keep giving it gas and its running between 9 and 10 to 1 afr according to wideband .
Thanks for the help
Ron H.

Mrbowtie26

iTrader: (3)

ttt....

brad8266

iTrader: (23)

idle should be in the 25-35 Kpa area, so you are going to want to change the ~25 Kpa vs ~800 RPM area of the chart.

The root of your problem could be lying in your VE and MAF table though. Have you scanned your LTFT's lately? If they are very negative it means that the VE and MAF table values are too high, which results in a rich condition, which in turn will drive negative LTFT's in closed loop. Keep in mind that the PCM will not use the LTFT correction during Open Loop either, it will multiply straight off the values in VE and MAF, so if they are to high, the multiplication will be even higher, resulting in very rich conditions.

If your VE and MAF are off, you want to get them dialed in first, and then Open Loop cold startup AFR should lean out for ya.