Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

Changing ECU what else do I need

Thread Tools
 
Search this Thread
 
Old Sep 15, 2010 | 06:35 AM
  #1  
dootery's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2010
Posts: 19
Likes: 0
Icon2 Changing ECU what else do I need

I have a 97 Accord I recently did a motor swap. The newer engine is a F22B from a 95 Accord where the Crank sensor, TDC sensor are in the distributor as opposed to the F22B2 they are on the block by the crank. I later found out that the F22B2 is OBD2 and the F22B is OBD1 so I tried everything to make this engine work and 3 months later I decided to buy the ECU and TCU to go with the newer engine. I also have purchased the engine harness from ECU and the harness that goes from ECU to TCU what else would I need. The engines are SOHC non-vtec

Last edited by dootery; Sep 15, 2010 at 06:43 AM. Reason: more info.
Reply
Old Sep 15, 2010 | 06:40 AM
  #2  
GhostAccord's Avatar
Honda-Tech Member
 
Joined: Mar 2007
Posts: 11,399
Likes: 69
From: East Coast 506, Canada
Default Re: Changing ECU what else do I need

Is the engine running now?

If it is running there is no need to switch the ECU or TCU. Other than style of OBD, they will run the motor and trans the same.

If it's not running you could wire the TDC & CKP sensors from the distributor to the OBD2 ECU. Using the existing wire harness going to the oil pump housing. Might be less work to do it that way than it would be to swap out the complete OBD2 harness for an OBD1 harness?????

If the OBD1 engine harness connector plugs directly into the OBD2 strut tower connector that would make things easy.
Reply
Old Sep 15, 2010 | 06:49 AM
  #3  
dootery's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2010
Posts: 19
Likes: 0
Default Re: Changing ECU what else do I need

It runs barely it sounds like a beat down lawn mower and there are no codes
Reply
Old Sep 15, 2010 | 06:51 AM
  #4  
GhostAccord's Avatar
Honda-Tech Member
 
Joined: Mar 2007
Posts: 11,399
Likes: 69
From: East Coast 506, Canada
Default Re: Changing ECU what else do I need

Have you checked the timing and compression?

How do you have the TDC & CKP sensors hooked up, from the distributor?
Reply
Old Sep 15, 2010 | 06:59 AM
  #5  
dootery's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2010
Posts: 19
Likes: 0
Default Re: Changing ECU what else do I need

yes, i rerouted the wires for the CKP and TDC. The engine runs for about 5 seconds then dies and it sounds horrible. The problem I had was the distibutor harness wouldnt fit on the newer motor because it is internal coil my old one isnt.
Reply
Old Sep 15, 2010 | 07:11 AM
  #6  
dootery's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2010
Posts: 19
Likes: 0
Default Re: Changing ECU what else do I need

so i dont need the ECU and TCU
Reply
Old Sep 15, 2010 | 07:24 AM
  #7  
GhostAccord's Avatar
Honda-Tech Member
 
Joined: Mar 2007
Posts: 11,399
Likes: 69
From: East Coast 506, Canada
Default Re: Changing ECU what else do I need

No, the OBD2 F22B2 ECU/TCU will run the 95 F22B2 when wired up.
Reply
Old Sep 15, 2010 | 07:31 AM
  #8  
dootery's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2010
Posts: 19
Likes: 0
Default Re: Changing ECU what else do I need

The 95 is F22B
Reply
Old Sep 15, 2010 | 07:51 AM
  #9  
GhostAccord's Avatar
Honda-Tech Member
 
Joined: Mar 2007
Posts: 11,399
Likes: 69
From: East Coast 506, Canada
Default Re: Changing ECU what else do I need

I realize that it's a 95 OBD1 JDM F22B. Is it a,
SOHC F22B Non VTEC (USDM F22B2)
SOHC F22B VTEC (USDM F22B1) or
DOHC F22B Non VTEC (No US counterpart)

The JDM (Japanese Domestic Market) engine codes do not include the sub codes like the USDM/EDM blocks do.
Reply
Old Sep 15, 2010 | 07:55 AM
  #10  
dootery's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2010
Posts: 19
Likes: 0
Default Re: Changing ECU what else do I need

SOHC F22B Non VTEC
Reply
Old Sep 15, 2010 | 08:44 AM
  #11  
GhostAccord's Avatar
Honda-Tech Member
 
Joined: Mar 2007
Posts: 11,399
Likes: 69
From: East Coast 506, Canada
Default Re: Changing ECU what else do I need

OK so you know it is the same as the 94-95 USDM F22B2. The parts are all the same. So if you want to start cross referencing electrical and mechanical issues that would be where to look. You should find the manuals for both the 94-95 OBD1 Accord and the 96-97 OBD2 Accord. They will help you trouble shoot any problems that you may be having.

PM sent

Reply
Old Sep 15, 2010 | 09:27 PM
  #12  
dootery's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2010
Posts: 19
Likes: 0
Default Re: Changing ECU what else do I need

Thank you very much for the PM and your knowledge, I will keep you informed
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
iheartmyctr
Tech / Misc
1
Feb 2, 2009 10:02 PM
halocore
Honda Civic / Del Sol (1992 - 2000)
1
Dec 21, 2008 05:58 PM
jaydm ferio
Tech / Misc
3
Oct 20, 2004 04:14 PM
vshivik
Honda Civic / Del Sol (1992 - 2000)
2
Aug 28, 2002 12:29 PM




All times are GMT -8. The time now is 06:45 PM.