Need help getting new 383 LT1 to idle
03-10-2008 | 07:35 PM
#1
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On The Tree
Joined: Sep 2004
Posts: 178
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From: ALBUQUERQUE, NM
Need help getting new 383 LT1 to idle Hey,
So I have started driving/breaking in my new 383. LOVE IT!
but
I am having a hard time getting the car to idle in gear. I adjusted my throttle idle screw all the way out. I then hooked up my wideband and noticed that it was running a little rich at idle to ~1000 rpm - so I went in and adjusted my VE tables in that range to compensate.
Now, the car is dialed at ~14:7:1 at 400-1000 idle.......but car still seems to stumble and want to die when I am sitting at a stop in gear at about 3--0500 rpm-----
I am using TunerCAT and can not find any idle control specific tables.
I did a search and found some stuff on drilling my TB plates....I don't want to do that.
What else do I need to adjust to get the car to idle in gear at a decent RPM?
So I have started driving/breaking in my new 383. LOVE IT!
but
I am having a hard time getting the car to idle in gear. I adjusted my throttle idle screw all the way out. I then hooked up my wideband and noticed that it was running a little rich at idle to ~1000 rpm - so I went in and adjusted my VE tables in that range to compensate.
Now, the car is dialed at ~14:7:1 at 400-1000 idle.......but car still seems to stumble and want to die when I am sitting at a stop in gear at about 3--0500 rpm-----
I am using TunerCAT and can not find any idle control specific tables.
I did a search and found some stuff on drilling my TB plates....I don't want to do that.
What else do I need to adjust to get the car to idle in gear at a decent RPM?
03-11-2008 | 12:05 AM
#2
Is your idle totally on the idle screw or is the screw backed out and you are totally on the IAC? You want some more both. More on the screw with a cammed car versus a stock one. When idling, how many steps is your IAC? (I am only assuming LT1's have similar IAC valves as LSx throttle bodies?) If not, sorry man.. I am an LS1 guy.
