rough ride problem, help please
Thread Starter
Instructor
Joined: Jul 2001
Posts: 108
Likes: 0
From: Cincinnati Ohio
rough ride problem, help please
Hi,
I'm doing some tuning on my C5. I'm using EFILive. Everything is looking good tuning-wise but when I drive the car and let off the gas it wants to, for lack of a more precise term, Jerk, lunge, shake, buck.
As soon as I add more throttle my wide band shows it going from 16.5 -18 afr back to 14.6 afr. In other words this only happens when I am not accellerating.
Most of my changes have been made with the VE table. Prior to this current problem everything was running great until I broke a valve spring. After new heavier springs were added, this problem began.
Does any one have any ideas what tables I should be looking at to fix this problem?
Here is what I am working with:
02 C5
427 stroker/ 628 hp
Automatic
342 rear end 3200 converter
Thanks for your help
Tony
I'm doing some tuning on my C5. I'm using EFILive. Everything is looking good tuning-wise but when I drive the car and let off the gas it wants to, for lack of a more precise term, Jerk, lunge, shake, buck.
As soon as I add more throttle my wide band shows it going from 16.5 -18 afr back to 14.6 afr. In other words this only happens when I am not accellerating.
Most of my changes have been made with the VE table. Prior to this current problem everything was running great until I broke a valve spring. After new heavier springs were added, this problem began.
Does any one have any ideas what tables I should be looking at to fix this problem?
Here is what I am working with:
02 C5
427 stroker/ 628 hp
Automatic
342 rear end 3200 converter
Thanks for your help
Tony
