Auto to Manual ECU needed?
#1
Driver
Thread Starter
Auto to Manual ECU needed?
I'm in the middle of getting my 97sc300 swapped over from auto to manul. Using a 95sc300 w58 tranny.
I've searched and found that a lot of people who've done the swap has just kept there auto ecu to operate the vehicle. By doing this the ecu will throw a CEL.
What are the best options to do about this?
a) just use the auto ecu and live with the CEL
b) buy which type of manual to fix this(any year sc300 manual ecu would work?)?
c) other?
I've searched and found that a lot of people who've done the swap has just kept there auto ecu to operate the vehicle. By doing this the ecu will throw a CEL.
What are the best options to do about this?
a) just use the auto ecu and live with the CEL
b) buy which type of manual to fix this(any year sc300 manual ecu would work?)?
c) other?
Last edited by yell0w; 05-12-11 at 07:02 PM.
#2
Lexus Champion
I believe you can use either one with a manual, however using the manual ecu will be better in the long run.
The Auto ECU has the electronic control for the AT, which obviously isn't needed for the MT. There might be a few other things, but I haven't looked into them that deep.
What do you mean by, "Buy which type of manual to fix this?"
The Auto ECU has the electronic control for the AT, which obviously isn't needed for the MT. There might be a few other things, but I haven't looked into them that deep.
What do you mean by, "Buy which type of manual to fix this?"
#3
Driver
Thread Starter
I believe you can use either one with a manual, however using the manual ecu will be better in the long run.
The Auto ECU has the electronic control for the AT, which obviously isn't needed for the MT. There might be a few other things, but I haven't looked into them that deep.
What do you mean by, "Buy which type of manual to fix this?"
The Auto ECU has the electronic control for the AT, which obviously isn't needed for the MT. There might be a few other things, but I haven't looked into them that deep.
What do you mean by, "Buy which type of manual to fix this?"
#4
Driver
iTrader: (1)
Join Date: Dec 2010
Location: The Lone Star State
Posts: 163
Likes: 0
Received 0 Likes
on
0 Posts
I meant does it matter which type of manual ecu i get? Pretty much can I just go to the junk yard and pick up a 93 or whatever year manual sc300 ecu and put it in my 97sc300 and it would still work. Sorry for the confusion. But I do appreciate your help and if you can help even more!
No. 92 to 96 are OBDI, and 96 to 2000 are OBDII. The problem is you won't find a manual ecu in anything newer that a 97. My suggestion would look for a rebuilt or used 97 manual ecu.
Trending Topics
#9
Lexus Test Driver
iTrader: (6)
Join Date: Aug 2008
Location: ca
Posts: 1,574
Likes: 0
Received 0 Likes
on
0 Posts
Here's some related info for you (advanced search is your friend):
https://www.clublexus.com/forums/per...ght-issue.html
https://www.clublexus.com/forums/per...ml#post6342552
https://www.clublexus.com/forums/per...up-lights.html
Note: these may not be in chronological order.
BTW, honorable mention goes to cartmill for pioneering a lot of this stuff
https://www.clublexus.com/forums/per...ght-issue.html
https://www.clublexus.com/forums/per...ml#post6342552
https://www.clublexus.com/forums/per...up-lights.html
Note: these may not be in chronological order.
BTW, honorable mention goes to cartmill for pioneering a lot of this stuff
Last edited by good2go; 05-12-11 at 10:07 PM.
#11
Driver
Thread Starter
Here's some related info for you (advanced search is your friend):
https://www.clublexus.com/forums/per...ght-issue.html
https://www.clublexus.com/forums/per...ml#post6342552
https://www.clublexus.com/forums/per...up-lights.html
Note: these may not be in chronological order.
BTW, honorable mention goes to cartmill for pioneering a lot of this stuff
https://www.clublexus.com/forums/per...ght-issue.html
https://www.clublexus.com/forums/per...ml#post6342552
https://www.clublexus.com/forums/per...up-lights.html
Note: these may not be in chronological order.
BTW, honorable mention goes to cartmill for pioneering a lot of this stuff
#12
Driver
Thread Starter
#14
Driver
iTrader: (2)
Join Date: Nov 2010
Location: ca
Posts: 105
Likes: 0
Received 0 Likes
on
0 Posts
I have a 1993 manual sc300 and replaced my ecu with an auto. I now have a cel on and another thing about it is that when u fullthrottle say in second gear, it will pause for a second and then go like it were to let off gas to downshift. Most the time it will do that anytime u fullthrottle. Other than that it drives the same.
#15
Driver
Thread Starter
I do appreciate all the help!