H23 swap to f22b vtec need help !!!!!! - Honda Prelude Forum

IndecentXxXposu · 03-25-2009, 06:20 AM

i had a blown h23 DOHC and it blew so i had a guy give me a f22b SOHC vtec motor i put it in and i am trying to use to factory harness and factory computer..i swapped the injectors out and put the h23 injectors in it and i also put the h23 butterfly on it now....it'll crank but only run if i spray gas in it and when i stop the the motor dies...there is alot of plugs that don't match up to the motor and from the motor to the harness...i don't care if the vtech works i'd prefer it but it doesn't matter i just wanna know what i gotta do to get the car running..there is a plug coming off the exhaust that is not plugged up also does that really need to be plugged in to help my problem ?? i am gonna plug it in anywase but just curious...i don't know much about all this so please try and explain the simplest way you can it took me foever to figure out what OBD ment lol and i dunno what p13 and p14 means either

OSOFAST10 · 03-25-2009, 07:11 AM

i thought the F22b was a JDM motor non vtec? i had an h23 and did a F22b swap and everythign was a plug and play... odd... yuo sure it's an f22b motor? as for p13 and p14 those are ECUs

IndecentXxXposu · 03-26-2009, 06:27 AM

wellit is a f22b vtec out of a 94 accord and there is alot of plugs that arn't pluggin up and i dunno what to do

jsmooney · 03-26-2009, 08:27 AM

there is a sohc f22b vtec here in the us from an accord....

the plug from the exhaust could be an 02 sensor. is it a obd1 motor? if its newer than 96/97 it COULD be an obd2 motor...

OSOFAST10 · 03-26-2009, 08:30 AM

ooohhhh... hahahah totally forgot about that one... i don't htink i've seen that swap before...

IndecentXxXposu · 03-27-2009, 06:32 AM

Quote:

Originally Posted by jsmooney

there is a sohc f22b vtec here in the us from an accord....

the plug from the exhaust could be an 02 sensor. is it a obd1 motor? if its newer than 96/97 it COULD be an obd2 motor...

thats what it is i dunno if it makes a difference but the prelude when i checked the vin number says it wuz made in japan if the accord wuz made in the us is that gonna screw me up ?? i don't know where the accord is so i don't think i could find out any info on it but i can try to find it though

OSOFAST10 · 03-27-2009, 07:30 AM

do you have the ECU from the accord motor?

jsmooney · 03-27-2009, 08:11 AM

I bet it's a vtec obd2 motor. do a little research on cb7tuner website/forum, I bet someone has put that motor in a obd1 car before

natemanas · 03-27-2009, 06:55 PM

A few things to consider...
1. the plug coming from the exhaust is an o2 sensor.. you need to plug it in unless you don't care about emissions or having a CEL
2. Check your fuel pressure regulator.. if you don't maintain constant pressure in the fuel rail, you may spray fuel, but lose pressure immediately, causing a stall.
3. Check your fuel pump, make sure you change out your fuel filter every 30k miles.

I'm sure there are many other things it can be, but that's what popped in my head first.

jsmooney · 03-27-2009, 09:36 PM

dummy thing, but make sure your fuel line is hooked up

IndecentXxXposu · 03-28-2009, 10:10 AM

Quote:

Originally Posted by OSOFAST10

do you have the ECU from the accord motor?

no i do not but if i did get the ecu out of that car what would i do about my h23 wiring harness ???

jsmooney · 03-28-2009, 09:23 PM

do you have any clue what year accord it came from? it could be a odb1, it could also be a obd2

IndecentXxXposu · 03-29-2009, 03:55 AM

Quote:

Originally Posted by jsmooney

do you have any clue what year accord it came from? it could be a odb1, it could also be a obd2

well there is a fuel filter on the firewall on the passenger side and then one right in the middle of the firewall up top well the i had to have 1 cuz all the fuel lines run to it so idk if it is for the accord motor or prelude motor but i had to have 1 and i got 1 for a 94 accord i tried 1 for the 92 prelude but it looked like the one on the passenger side so i am guessin the motor came out of a 94

i can prolly find the car somewhere but i know these plugs are not matching up at all some are but some ain't and idk what to do about the plugs that arn't plugging up

OSOFAST10 · 03-30-2009, 09:19 AM

good luck... you migh tbe doing a custom setup as i've never seen or heard of someone doing this swap

MLBZ521 · 03-30-2009, 03:35 PM

Ok...

1) You do not want to use the H23A1 ECU or Injectors on the F22 VTEC.
2) Before you put the motor in the car you should have compared the wiring harnesses.. i.e. What goes where, what plugs up to what, etc..
3) You'll have to wire up the VTEC and Oil Pressure Switch for VTEC to work as the '92 Prelude isn't wired for it..

Before anyone can really help you, you'll need to figure out what year the F22 came out of; if it's OBD1 or OBD2. This is a MAJOR issue. Are you SURE it came out of a stock '94 Accord?

And without pictures we don't know what "plugs" you're talking about...

And I have no idea what you were trying to say about Fuel Filters.. You have two? But something else and something else and I have no idea... lol

jsmooney · 03-30-2009, 09:16 PM

^^ what he said, except get the motor running before you even worry about vtec. chances are its obd2 - you can get a conversion harness and chances are there arent too many sensors that are different - we can work through this

OSOFAST10 · 03-31-2009, 12:06 PM

pics or no help

turboludesi · 04-01-2009, 04:26 PM

I hate to bring an old thread up but I threw a rod in my h23 and i have a 95accord f22b1 motor and ecu. can this swap be done sucessfully? because i really miss my car.

MLBZ521 · 04-01-2009, 04:40 PM

Old thread?? This is a week old? With a post from yesterday.. :P

Can be be done? Sure, yea, don't see why not.
The S Model came with an F-Series.. You'll just have an engine with less HP.

turboludesi · 04-01-2009, 04:49 PM

thats what i was hoping to hear. thank you verry much!

will i need to find the f series motor mounts or will my h23 ones work?