plumbr

During initail start hot or cold my idle is extremely low and won't idle without a little throttle input. This only lasts untill it goes closed loop and then it idles well. Using efi live but still a novise tuner, ltfts are perfect at average -1.5 to -2 afr is 12.5 accross the board. Any one have suggestions on how to get my open loop idle stabalized. Thanks in advanced

2000Z28M6

iTrader: (13)

My car acts the same the tuner said, just get used to it basically. Wish I could fix this though. I too would like to know.

plumbr

Anouthe note on this problem if indeed it is one. Afr at idle hoovers around 15.5 to 1 on my wide band.At closed loop.

horist

what's your target Idle speed?

Also are the LTRIMs all -1.5 to -2 at idle? how much timing are you seeing at idle? (on cold start w/coolant low there's an ECT timing table, it pulls alot of timing, I've found removing some of this retard has helped idle)

There's also an open loop AFR table, you could try leaning it out at idle RPMs

plumbr

idle speed set at 1050 when cold, ltfts at -7-6 after it goes closed loop, open loop dle afr parameter set at 1.00 commanded afr is 14.63 . will try to bump up idle speed when cold first and see what happens. appreciate the help. Is the 15.5 afr at idle closed loop to lean?

plumbr

Found my issue with idle. Just needed to adjust the set screw on the 80mm tb, didn't notice there is no hole at all in it. Adjusted it up 4% and reset the tps. Idles perfect, thanks for the input.

Nickn20

i was about to ask what are your IACs at they should be around 50 or so. but as the other mentioned open loop FA, VE, and timing all have an effect in idle.