REALLY NOOB. Prelude engine swap, quick question. Please help
Okay, so not everyone is super tech mechanic. Basically all I know, is that an Engine, is called an ENGINE. It has wires, and other black and grey confusing things in it, and it makes the car move. SUE MEEEEEEEE !! So please bare with me while I try to explain myself. But Im not a stupid person, and apparently my mechanics are stumped as well, so Im in need of a little help. So heres the scoop:
I have a Honda Prelude 1995. 4th Gen. SR-V (NON Vtec STOCK Engine.) My engine had a very bad leak and ended up needing to be changed immediately, last minute. So call me a fool, but me knowing nothing about cars and compatibility, hopped on kijiji guns blazing, searching for a new engine. I found one with low milage and what seemed to be all together and a VERY good price so i quickly bought it in haste to get my car back on the road as soon as possible as my lifestyle DEMANDS a vehicle, END OF STORY, school, work, p*ussy, everything in different cities ! the engine turned out to be missing a few parts ( BIG SURPRISE) but thats not really the issue..yet. What was missing was the vtec solenoid, which i bought, and im under the impression that the wiring harness (stock) in my car should wire up fine, providing i use a seprete wire to run to the solenoid ( again, i have no idea wtf im talking about, im just going from what i remember the vtec mechanic saying to my neiborhood mechanic) The problem im afraid is going to arise is the fact that the engine i bought was OBD2 when im hearing the honda prelude i have is made for OBD1 model engines. So in short what im asking is, What kind of problems would i run into trying to swap my Stock NON VTEC engine (OB1) for this new VTEC engine (OB2 H22A i believe) and what kind of solutions are there to correct, spending the least amount of money. (example: the vtec mechanic actually told me that OB2 engines need TWO ecus? if thats the case then im f*ucked Right then and there as I only bought one, not to mention that ecu might be for a OB1 engine, but then again does that even matter? as u can see im pretty mixed up!) Any help would be much appreciated THANKS!
An H22a is also OBDI. There is only one ECU, stop listening to the "mechanic" that told you that you need two. He is obviously just as confused as you are.
There are several threads detailing what need to be done for put an H22a into a 4th gen. I don't know the details (because I have an OBDII 5th gen), but just search a bit and you'll find it. Good chance it's in the FAQ.
true.. my mechanic is extremly confused, i can tell they dont really know whats up. and it just irritates me. thats why im just gonna try to research for myself and try to find out EXACTLY what needs to be done and just forward it to my tool of a mechanic and have him handle it
Swapping an H22 into an h23-equipped car, you will need to add:
VTEC solenoid, (signal=Green/Yellow to ECU Pin A4 )
VTEC pressure (oil pressure), (signal=Lt blue to ECU Pin D6 )
VTEC pressure (oil pressure), (ground=Black/Red )
Swapping an H22 into an f22-equipped car, you will need to add:
The wires listed above AND. . .
Knock sensor, (signal=Red/Blue to ECU Pin D3)
IAB, (signal=Pink to ECU pin Pin A17 ), (power=Blk/Yellow to 12v+ switched power source (hot with key in "on" or "start")
Okay, so not everyone is super tech mechanic. Basically all I know, is that an Engine, is called an ENGINE. It has wires, and other black and grey confusing things in it, and it makes the car move. SUE MEEEEEEEE !! So please bare with me while I try to explain myself. But Im not a stupid person, and apparently my mechanics are stumped as well, so Im in need of a little help. So heres the scoop:
I have a Honda Prelude 1995. 4th Gen. SR-V (NON Vtec STOCK Engine.) My engine had a very bad leak and ended up needing to be changed immediately, last minute. So call me a fool, but me knowing nothing about cars and compatibility, hopped on kijiji guns blazing, searching for a new engine. I found one with low milage and what seemed to be all together and a VERY good price so i quickly bought it in haste to get my car back on the road as soon as possible as my lifestyle DEMANDS a vehicle, END OF STORY, school, work, p*ussy, everything in different cities ! the engine turned out to be missing a few parts ( BIG SURPRISE) but thats not really the issue..yet. What was missing was the vtec solenoid, which i bought, and im under the impression that the wiring harness (stock) in my car should wire up fine, providing i use a seprete wire to run to the solenoid ( again, i have no idea wtf im talking about, im just going from what i remember the vtec mechanic saying to my neiborhood mechanic) The problem im afraid is going to arise is the fact that the engine i bought was OBD2 when im hearing the honda prelude i have is made for OBD1 model engines. So in short what im asking is, What kind of problems would i run into trying to swap my Stock NON VTEC engine (OB1) for this new VTEC engine (OB2 H22A i believe) and what kind of solutions are there to correct, spending the least amount of money. (example: the vtec mechanic actually told me that OB2 engines need TWO ecus? if thats the case then im f*ucked Right then and there as I only bought one, not to mention that ecu might be for a OB1 engine, but then again does that even matter? as u can see im pretty mixed up!) Any help would be much appreciated THANKS!
J
Quote:
Originally Posted by indylude18
^Nope.
An H22a is also OBDI. There is only one ECU, stop listening to the "mechanic" that told you that you need two. He is obviously just as confused as you are.
There are several threads detailing what need to be done for put an H22a into a 4th gen. I don't know the details (because I have an OBDII 5th gen), but just search a bit and you'll find it. Good chance it's in the FAQ.
He bought ob2 h22a. If i read that correct, and im sure i did. And I know they have obd1 h22a.
Soooo, OB2 to ob1 ecu harness.
Dont need to splice wires or anything for the non vtec body. Just buy this item called Vtec subharness. They sell it on ebay. Plug and play for vtec.
My friend did the 97 h22 engine ob2[5th Gen] to his 92 prelude si ob1[4th gen]. We just did those as for wiring. Then good to go.
You're Welcome,
Lynn
Last edited by boyasaurus; 06-04-2011 at 10:24 PM.
thanks lynn! i hope thats all i need, im hearing sooo many different answers. im gonna run them all by my mechanic tommorow when the shop opens and see which is the least expensive route to take
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