General Tech Help Good at troubleshooting? Have a non specific issue? Discuss general tech topics here.
Sponsored by:
Sponsored by:

94-95 ex ecus

Thread Tools
 
Search this Thread
 
  #1  
Old 02-03-2012, 09:39 AM
live2rice's Avatar
Super Moderator
Thread Starter
Join Date: Oct 2006
Location: Alaska
Posts: 8,725
Default 94-95 ex ecus

Did they have separate TCUs for automatics? I am looking for a stock ECU for a 95 f22b1 manual, and I am wondering if I can use an auto one.
 
  #2  
Old 02-03-2012, 10:05 AM
crispin's Avatar
Been Around A Long Time Member
Join Date: Sep 2010
Location: Tennessee
Posts: 1,653
Default

As I am in the middle of swapping my auto to a 5 speed I have done hours and hours of research - the answer is yes and yes
 
  #3  
Old 02-03-2012, 10:22 AM
live2rice's Avatar
Super Moderator
Thread Starter
Join Date: Oct 2006
Location: Alaska
Posts: 8,725
Default

thank you for your help, got one ordered.
 
  #4  
Old 02-03-2012, 05:43 PM
g22cd5's Avatar
Supper Moderator
Join Date: Feb 2009
Location: Tallahassee, FL
Posts: 3,894
Default

yes there is ALWAYS a TCU for auto trans. 5speed just ecu.

I believe you have to some modifications to the auto ecu to make it work. Not just a simple plug n play from what I remember....I could be wrong tho
:/
 
  #5  
Old 02-03-2012, 05:53 PM
live2rice's Avatar
Super Moderator
Thread Starter
Join Date: Oct 2006
Location: Alaska
Posts: 8,725
Default

Well we shall see when I get it, if not I'll just resell it.
 
  #6  
Old 02-03-2012, 05:57 PM
g22cd5's Avatar
Supper Moderator
Join Date: Feb 2009
Location: Tallahassee, FL
Posts: 3,894
Default

b/c if I'm not mistaken the AUTo ecu withh pop a CEL for the auto trans. Since it is not getting any type of signal from it.

I can't find the thread I wanted to post about this....It was over on cb7tuner.com
 
  #7  
Old 02-03-2012, 06:03 PM
g22cd5's Avatar
Supper Moderator
Join Date: Feb 2009
Location: Tallahassee, FL
Posts: 3,894
Default

this not the link I wanted but it will do.,...

will auto ecu work for 5spd? - CB7Tuner Forums
 
  #8  
Old 02-03-2012, 06:08 PM
crispin's Avatar
Been Around A Long Time Member
Join Date: Sep 2010
Location: Tennessee
Posts: 1,653
Default

I have a 95 5 speed ECU sitting in my donor car right now.
I wish I had thought of that earlier today cause I could have sold you mine for cheap as I do not need it.

Anyway the ECU and TCU are separate on the 95 - 96 years.

The ECU is the same regardless if it is in am Auto or Manual car.

The one you bought will work fine, like I said I am in the middle of a swap right now and have done at least 30-40 hours of research on the swap so I think I have a good understanding of it.

I do understand why g22cd5 thinks there might be a problem as there is so much conflicting info about the swap. One person says one thing and someone else says the opposite. However it is a fact that the 95-96 ECUS were all the same just the auto cars got a TCU added next to the ECU. The ECU and TCU do not communicate with each other on those years. I have a 97 with a combo ECU/TCU however I am going to use it as I have researched how to trick the unit into thinking all is well.
 
  #9  
Old 02-03-2012, 06:19 PM
g22cd5's Avatar
Supper Moderator
Join Date: Feb 2009
Location: Tallahassee, FL
Posts: 3,894
Default

good info crispin!

btw all honda the TCU is separate from the ecu. I could have sworn I read something that you have to do something to the ecu to make it work. BUt if you got it figured it that’s dope! Maybe it's only for cb7's?? I donno. but anyways your question was answered that's all that matters
 
  #10  
Old 02-06-2012, 06:51 AM
JimBlake's Avatar
Super Moderator
Join Date: May 2006
Location: Wisconsin
Posts: 18,398
Default

They're not separate on all Hondas. The ECU and TCU (Honda actually calls them ECM & TCM) were combined into one PCM (powertrain control module) beginning in 1998.

I remember reading that there's a jumper you can move (or remove?) to change the ECU from auto to manual or vice-versa. Maybe that was only for certain years. It makes sense that the units would communicate more for OBD-2, at least the ECM would pass signals through to an OBD-2 scanner.
 



All times are GMT -5. The time now is 11:57 PM.