What is controlled by the ECM ?
Thread Starter
Intermediate
Joined: May 2001
Posts: 45
Likes: 0
From: Oisterwijk, NB, The Netherlands
What is controlled by the ECM ?
Guys, I need your help...
Is it true that the auto transmission of my 86 corvette is controlled by the ECM?
This is happening: I give my tranny up for a total rebuild because we were missing a gear and the shifting was very rough !
Now it is still not shifting softly. It seems that the 4th gear comes in at 140 km/h when I keep on driving in D. Everything should be changed inside the tranny. So they come with the story that there should be something wrong inside the ECM !!???
I need a lot of information about how the ECM works and how the tranny is connected with the ECM.
Thanks.....
(Yellow 1986 coupe)
Is it true that the auto transmission of my 86 corvette is controlled by the ECM?
This is happening: I give my tranny up for a total rebuild because we were missing a gear and the shifting was very rough !
Now it is still not shifting softly. It seems that the 4th gear comes in at 140 km/h when I keep on driving in D. Everything should be changed inside the tranny. So they come with the story that there should be something wrong inside the ECM !!???
I need a lot of information about how the ECM works and how the tranny is connected with the ECM.
Thanks.....
(Yellow 1986 coupe)
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Re: What is controlled by the ECM ? (wilhelm86)
If I remember right, only the lock up convertor is controlled by the ECM. All other transmission functions are internal to the transmission. GM didn't start taking over actual shifting until the early 90's, and until then all the ECM function was to control TCC lock up.
