Idle Quality on A4 Stroker Engine?
Thread Starter
Drifting
Joined: Aug 1999
Posts: 1,278
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From: Amelia ohio
Idle Quality on A4 Stroker Engine?
The question is, why is the idle so hard to tune on an A4, but the same engine in a M6 idles fine? Their must be some programing changes in the PCM that LS1 Edit does not Address at this time. I talked to Wade (ARE) about this and we both would like to know the answer.
I have seen the GM program and their are Thousands of sections and only a few that the Edit covers. I know the LS1 Edit will get much better in time.
So, any input on this, feel free to jump in.
I have seen the GM program and their are Thousands of sections and only a few that the Edit covers. I know the LS1 Edit will get much better in time.
So, any input on this, feel free to jump in.
Safety Car
Joined: Aug 2000
Posts: 4,154
Likes: 1
From: Murphy TX
Cruise-In II Veteran
Re: Idle Quality on A4 Stroker Engine? (Tom Hall)
I have seen the GM program and their are Thousands of sections and only a few that the Edit covers.
I know the LS1 Edit will get much better in time.
Can you describe when you feel the idle becomes difficult to tune?
Drifting
Joined: Jun 2000
Posts: 1,577
Likes: 99
From: Dubai, UAE
Re: Idle Quality on A4 Stroker Engine? (Tom Hall)
Iam not sure. The engine is the same, the only difference would be the drivetrain. I bet the torque converters in A4 has something to do with it.
Melting Slicks
Joined: Aug 1999
Posts: 2,540
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From: Milwaukee WI
LS1Edit Guru
Cruise-In I Veteran
Cruise-In II Veteran
Cruise-In III Veteran
Re: Idle Quality on A4 Stroker Engine?
The latest Beta of LS1Edit has additional gear scaling (addresses all issues I have had), and two additional idle tables which address the IAC control issues I've been waiting for....
Melting Slicks
Joined: Dec 2001
Posts: 2,040
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From: Collin County Texas
Re: Idle Quality on A4 Stroker Engine? (nevrenuf)
I know that when I had my 3500 Vigilante installed, the idle was about 100 rpm's lower and it even died one time when I went around a corner. The idle seemed to be hunting for a resting place when I came off the throttle, going between 450 and 600, up and down.
We eventually solved it by upping the idle using LS1_Edit and what I think really helped, doing the simple idle relearn procedure. That, I think, eventually settled everything down. Now, it idles at 650 rpms, no wandering, just like stock. Maybe it was only the relearn procedure that did it.
We eventually solved it by upping the idle using LS1_Edit and what I think really helped, doing the simple idle relearn procedure. That, I think, eventually settled everything down. Now, it idles at 650 rpms, no wandering, just like stock. Maybe it was only the relearn procedure that did it.
