i have a 96 accord with a knocking rod i have a 98 f23a5 i am putting in it what i would like to know is should i or do i need to change the ecu and if so which one should i or do i need to make it run the best

 

What country you from? F23A5 does not exist here in the US unless it's been imported. That F23A5 seems like a UKDM engine.

And yes, you'll need to use the F23 ECU to keep running like it should.

 

i am in the usa
This engine was used in the 1998-2002 Honda Accord DX and the 2002 Honda Accord LX VP (value package) in North America.

Specifications

* Bore × Stroke: 86.0 × 97.0 mm
* Displacement: 2254 cc
* Valve Configuration: SOHC, 16 valves
* Compression ratio: 8.8:1
* Max power: 135 hp (100 kW) @ 5500 rpm
* Max torque: 153 ft·lbf (206 Nm) @ 4500 rpm

 

true. my sister has a VP with the F23A5. non-VTEC version of the F23A1.

which motor are you replacing? is it VTEC or non..? if it's the VTEC motor (F22B1) just think of it as replacing the short block. reuse the original wiring, sensors, manifolds... and ECU. the ECU won't know the difference. on the other hand, if it's the non-VTEC (F22B2) the manifolds won't swap over, but you should still be able to get most sensors to hook up just the same. it may take a little rewiring to get it right though.

 

my car had the f22b2 non vtec so i figure that the only thing that is different is the dizzy thats all i found so far but i only looked at the f23 for a few mins

 

thanks to all who tried to help me with this problem but i have it running now with the f23a5 i love the torque

 

please tell me what u did to fit the f23a5 n the 96 accord i have a f23a5 i just put in my accord 96 and im tryin to finish up installin then i noticed the intake manifold is different so i compared it to my stock f22b2 intake and they bolt on the head excatly so is that all i change to make it work please help me anybody

 

please help me im doin just what u did how did u make it work

 

If you where able to read, you would be able to see that he has yet to even install the motor.

Please make your own thread, no one will help you when you're hijacking someone's thread.

 

Ok I can read just fine he says he has it runnin and thank for all the help can u help me with my problem n sorry I didnt no I was hi jacking a thread im new to this site

 

Chill out dude, asking an OP a question about his thread because it relates to what you are doing personally is hardly a thread jack.

@ gillis, hopefully the OP will chime in here soon, if not you could try PM'ing him regarding this topic to get his take on it.

 

Your tranny code is BAXA for Ohio. MAXA for Japan. 5 Speed P2A8.

 

I'm about to do this swap and have been searching for others who have done it. Not much out there. This link is about all I can find, specifically post #4 by Fireman142: 23 swap in f22 car?
I think there's two ways to do the swap.

1. Keep the F23 intake manifold, which is what Fireman 142 did, above.
2. Use the F22 intake manifold.

From what I can tell, the F22 manifold bolts right up. But there's a power advantage to keeping the F23 manifold. To keep it, you need a 3-wire to 2-wire IACV adapter. BlackTrax sells one that seems to work but requires some grinding of the IACV. Rosko Racing also makes one that requires no grinding but I'm not positive it's for F-series manifolds, and an email to Rosko has got no response. Another option is to run the F23 manifold, block off the IACV holes, and just turn up the base idle.

It'd be helpful if the OP came back to say how it did the swap.

 

Sweet thank u so much from what I been lookin at on it all I thought that was what I needed to do I just wasnt for sure it would be ok and im takin ur advice on using the f23 fuel rail the objectors are bigger so man thank u thank u we didnt have the money to buy another motor n I so hoped this would work I keep everybody posted when I get it runnin