i have a 91 four door EX. motor had bout 260 thousand on it. bought a 94 EX VTEC for bout $250.00 with new DC 4-2-1 header. bought the intake C.A.I. . Just found out that i have to send out the dash and engine bay harness to HAS SPORT to have it retroed to fit my 91. I allready have the 94 ECU and motor wire harness. Has anyone done one of these swaps b4. Need some tech help in a bad way. P.S. also bought a used once for 15 seconds VENOM nitro systme. bottle is still full. Istall is free. Set up cost $100.00. So can you project horse power and any hints.

 

You deff. dont have to go through hasport to get that motor running.. i dont even think they do that for what your asking.. oh and you should have a million h.p.!!!

 

well can you maby throw a bone as to where or what has to be done to make this work? the guys at u fix it honda auto wreaking said that it would be a direct fit and hook up except the VTEC wire and the presure switch. drivers side motor mount had to be shimmed bout 1.5" to drop the motor to propor height. now the engine bay harness dosnt even come close to mating with the 94 motor harness. shop says they will need my ryde for a month and a half. can someone help this newbie out.

 

Lol... hey man.. i recently just did the 94 swap into my 90 Ex 2dr 5spd.. and they are a bunch of bullshitters.. But anyhow... the motor drops right in w/out any problems, but your gonna hafta fabricate some stuff... like the stock motor mounts, and some brackets.. o and btw.. with that new motor, the headers you have is gonna hit ur front crossmemember and get stuck, so you will hafta bend that back so itll fit (lil problem i ran into) o and if you downpipe doesnt have that meshy **** like the 91 does, then your screwed (just like i was).. because then ur exhaust is goonna be like 10inches too short.. and 1 more thing... also your going to have to rewire all of your vacuum lines, and come up w/ur own set up for the vtec.. mine is running off a msd igniton vtec controller.. i might be missing some stuff, but ask some more ?'s when u get back (all i can think of right now)

 

In my opinion.. you should just go find another f22a4 thats in good condition and less miles and just swap the heads, it would be A LOT easier... somthing i should have done, but i dont feel like looking around at junkyards for decent motors

 

yeah, the exhuast down pipe was way to short. so i had a donner from a 89 accord. but the up reach on the down pipe was not tall enough, so we are mating the two togather. but the main problem is, is that the wire harness will not match up at all. and i have no idea how you would mate the M.A.P. center vacume box up to the 94 intake manifold? the 91 M.A.P. center is based off the ugly vacume box on the passengers side fire wall. the 94 M.A.P. center is all electronic. so there is no place for the vacume lines to hook up on the intake manifold. just need to have the 94 motor harness plug into the engine bay harness. and it dont come close. and yes i allready got a harness from a 94. it travels from the computer, up behind the heater blower box. at wich point it splits, one way go's left accross the dash to the insturment cluster and heater things. the other way go's thru the fire wall and into the engine bay. so the end result is, is that i need only to change the part that is in the engine bay, and every thing inside the car [ like the dash harness] must stay the same. I know way long thread. just tryn to save 2 g's on labor and HAS SPORT and shipping.

 

hmm... you dont need to replace your old wiring harness... you just hafta use some sensors and wires from the old harness, thats about it.. and about the map sensor u hafta rewire it differently, and rewire the vacuum lines.... best bet is to find vacuum diagrams for both 94 and 90 accords, and find what lines you need to hook up, and what lines you need to block off.. but i gtg for now.. good luck

 

yeah, i see what ur talkin bout. but i only counted 2-3 vac lines on the 94. and about 6-9 on the 91, [just a guess motor not infront of me at this tym] see the prob is, is that i cant seem to find a web address that shows me with big words and pictures. i do appreciate the advice. keep it comin. thanks

 

try autozone.com.. or try using google and look for: 91 accord vacuum diagrams/91 accord wiring diagrams.. then look for things liek 94 accord vacuum diagrams, etc... ill see if i can find my old links to some pics

oh and btw.. my cord is still not running right.. im still hesitant bewteen 1000-2500rpm's, and my vtec doesnt kick in hard like it should be doing at 4000rpm's..and the CEL is always on, i cant seeem to track down the problem!

but keep searching man, maybe we can help eachother if you get it running? peace

 

yea heres a diagram for the 90-91

http://www.honda.co.uk/owner/A...0.pdf

 

what about if worst came to worst. couldnt i just take a harness from a 94 EX and just convert all the plugs on the drivers side of the dash. like insturment cluster and heater plugs and whatever else is under the drivers side of the dash? and did you do the same conversion i am, but you still arnt quiet right yet? is it maby cause of the vacume box that you retroed. just a question. all new waters for me. and i dont wanna drowned.

 

well.. there is no need converting everything over.. jus a pointless waste of time.. alls you need is a few plugs, sensors, and wires from the old harness... other than that you just hafta kno what your doing i guess?? i had a couple of friends help me w/ mine.. so yea.. i mean my swap is still not completely done yet.. so ill let you kno what was wrong w/it afterwards but keep ur head up.. youll get it :thumbs up:

 

the shop doing my swap just called today and said [ get it out of here, we dont have time]. which is just great, cause i am no frigin electrician. i have probs with trying to read a wire scamatic. starting to think that you and i are the only ones that have attempted this ungodly swap. my pals say ' go with the H-22'. but that is not what i want. got the frigin turbo half way paid for. and the juice is all plumed. just need this wiring prob fixed. and i did try to look up that host you posted, but it made my PC geek out.

 

hmm damn man... if you were somewhere near my i could even attamept to come help you but ur not.. idk what kinda problems your having or what you need done... maybe some pics would help of what u need done?

 

actually i just spent 15 minutes on the phone with {?} down in Miami. and guy on the phone made me "MAKE IT IN MY PANTS". i was so excited when i got off the phone, that i almost walked on to my balconey and yelled. did not know if i could post the web address of the place i talked to. and actually we are not on our own with this swap. its quite commen down in Miami area. anyhow, all i have to do is, switch out my throttel body, or use my 91 intake manifold. but the most important is to put my 91 motor harness back onto the 94 engine. almost quit on my SOHC VTEC and spent an additional 3g's on a H-22 swap. i'll give the web address aslong as the moderators dont have a prob. evelutions of my emotions for the day.

 

lol right on!... but ill tell you this right now ur stock itnake manifold wont fit on that f22b1 block... ive tryed.. =/ and wow it was a bitch because we were tired and cranky, and we did like 3498347 diff things, but yea.. post that bitch up! i wanna see that shyt!!!

 

they dont really show any pics of our car. he just said to yank the motor back out and put the 91 engine harness back on. and then switch out throttle bodys. but why would he say that the intake manifolds were switchable. and check your email i PM'd you. so is that what you did, switch out the throttle body and used your 92 harness, but you did not have the 94ECU and that is why your car ran like ****. huh. im old, so im going to bed in a half. i'll check the posts tommorrow. but let me know what you did damn it. not the tym to hold back information, the faite of the world depends on your knowlage!!!!!!!

 

lol the fait of the world??? haha anyways man, i used everything from the 94 ex motor (f22b1)... the only thing i didnt use was motor mounts/axles/harness/exhaust sections/ps/alt/and tranny... everything else was from the f22b1.. so just really hook the alt, p/s, motor mounts, and axles to the motor.. get the 94 ecu, do the rewiring for vacuum lines, customize and fabricate some brakets because of the headers and crossmemeber and boom it sits in the engine bay... buy my problem right now is idk wtf is wrong w/it!! and im working on it lol bout 2 give up tho its a pain in the ***

 

na na na. dont give up. but my shyite is all settled in the engine bay. all i have to do now is the wiring. but unfortunatly, now i have to yank the engine back out to change the motor harness. exhuast is not hooked up or the throttle linkage. but did you have to change fuel rails. and is the VTEC solinoid on the intakemanifold have no pics infront of me at this tyme.

 

umm the vtec solenoid is where its suppose to be, and yes i used the 94 fuel rail.. just bought a longer fuel hose ... just that easy ... and i custom made my own throttle cable holder or w/e lol

 

so is there any updates man??? lemme kno!

 

yeah, car is going to a different shop. they have done this before. one flat rate, no suprize price jumps. check out my other thread "just gave 2g's away" it has a perfect expanation as to the last couple of day's. how is urz doin??