With help of an experienced tuner, got idle and cranking sorted out. However, when car is idling and shifted into gear (reverse or drive) it dies.
In this case the IAC opens up to 180 from a defined value of 51, RPM drops from idle of 900 to just above 500 and it starts hunting in that range. For the most part AF is on target ...
We looked over all of the tables and found no significant mis-configurations. We also tried adding and removing values in desired AFR to affect enrichment.
Couple of ideas ...
1) At this point is desired AF ratio doing much? Thinking about it now I'm wondering if its getting below the closed loop enable (500rpm).
2) The IAC motor does follow Throttle Follower values when revving at idle, except for when going into gear and the above scenario happens. The IAC is recently new and I'm not totally suspecting a bad part yet. Giving the motor some RPM will allow it to every so often fin its way back to the defined thorttle follower value.
3) Classic case of VE adjustment? Put it in gear, let the RPM drop, IAC skyrocket, and see which VE cell it hits. Adjsut that cell either way + or - ?
4) Tried adjusting the throttle blades (open close) via the screw but there was no noticable change.
Thoughts?
In this case the IAC opens up to 180 from a defined value of 51, RPM drops from idle of 900 to just above 500 and it starts hunting in that range. For the most part AF is on target ...
We looked over all of the tables and found no significant mis-configurations. We also tried adding and removing values in desired AFR to affect enrichment.
Couple of ideas ...
1) At this point is desired AF ratio doing much? Thinking about it now I'm wondering if its getting below the closed loop enable (500rpm).
2) The IAC motor does follow Throttle Follower values when revving at idle, except for when going into gear and the above scenario happens. The IAC is recently new and I'm not totally suspecting a bad part yet. Giving the motor some RPM will allow it to every so often fin its way back to the defined thorttle follower value.
3) Classic case of VE adjustment? Put it in gear, let the RPM drop, IAC skyrocket, and see which VE cell it hits. Adjsut that cell either way + or - ?
4) Tried adjusting the throttle blades (open close) via the screw but there was no noticable change.
Thoughts?