Idle Issues & ISCFLG
Posted: 2022 Jun 07, 11:22
First, I apologize that I'm not using the same software you folks are, so truly do not speak the language. But I need a bit of help getting my idle sorted.
I've read, read, & re-read the instructions on fuel and idle, and have attempted to follow them. But I do run into the translation problem between BE and Ford function #'s, so may not have gotten everything perfect. However, I do have the fuel sorted, I think, but am now having problems with the idle.
The idle is smooth enough, but I cannot get it down to the 648 RPM I want. Instead it runs about 800 when fully warmed up. But I'm not getting the ECU to control the idle RPM as ISCFLG is staying at 0, meaning I'm in Dashpot Preposition.
So I'm trying to figure out how ISCFlG gets set. In BE-speak one hurdle that has to be jumped is Lower Limit to Enter Dashpot RPM Control, and that is set to .4 LBS/MIN in YER2. However my AM is running ~1.2 at idle, so I know I'm not in the range to go into RPM Control.
As said, I've gone through the Idle writeup many times and it looks like an AM of 1.2 at idle is reasonable. So can I just set the lower limit to something like 1.4 to enter RPM Control?
I've read, read, & re-read the instructions on fuel and idle, and have attempted to follow them. But I do run into the translation problem between BE and Ford function #'s, so may not have gotten everything perfect. However, I do have the fuel sorted, I think, but am now having problems with the idle.
The idle is smooth enough, but I cannot get it down to the 648 RPM I want. Instead it runs about 800 when fully warmed up. But I'm not getting the ECU to control the idle RPM as ISCFLG is staying at 0, meaning I'm in Dashpot Preposition.
So I'm trying to figure out how ISCFlG gets set. In BE-speak one hurdle that has to be jumped is Lower Limit to Enter Dashpot RPM Control, and that is set to .4 LBS/MIN in YER2. However my AM is running ~1.2 at idle, so I know I'm not in the range to go into RPM Control.
As said, I've gone through the Idle writeup many times and it looks like an AM of 1.2 at idle is reasonable. So can I just set the lower limit to something like 1.4 to enter RPM Control?