Timing freaks out at idle
Thread Starter
Joined: Jun 2006
Posts: 1,429
Likes: 1
From: Spring Hill,Kansas
Timing freaks out at idle THe car completely freaks out at idling as you can see in the log. Anyone have a clue what might be causing this? It does it in and out while it idles
Thread Starter
Joined: Jun 2006
Posts: 1,429
Likes: 1
From: Spring Hill,Kansas
yea I have the pro version. Last night was the first night I got to use the program so I havent wired the wideband up. This issue does this at idle intermittenly. I can tell you though at idle my wideband shows my a/f going all OVER the place. sometimes dipping into the high 10's and ~low-mid 11's
It's the overspeed / underspeed spark avance adders,
they are the "front line" to try and stabilize idle.
If you give these a lot of authority they can do a
pretty good job, but too good a job and the PCM
don't learn nuthin' about airflow. Watch for stupid
stuff like in the underspeed, increasing advance with
underspeed error out and then popping back to zero
for big error - easy way to get yo-yo idle action.
they are the "front line" to try and stabilize idle.
If you give these a lot of authority they can do a
pretty good job, but too good a job and the PCM
don't learn nuthin' about airflow. Watch for stupid
stuff like in the underspeed, increasing advance with
underspeed error out and then popping back to zero
for big error - easy way to get yo-yo idle action.
