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obd2 to obd1 help.

 
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Old 03-30-2007, 12:12 AM
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obd2 to obd1 help.

Whats up everyone i just bought a h22a for my 97 prelude base, h22a is a obd1 and my car is a obd2 i know i need the obd2 to obd1 harness but where i bought the engine they told me about a obd2 to obd1 distrubutor cap harness to make the car run obd1. where can i get this or is this something i can do ?? any help would be appreciated..
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Old 03-30-2007, 12:42 AM
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You need not worry about the dizzy. It's only true for some engine swaps. I've got my stock 1997 h22 ecu converted from obd2 to obd1 with hondata and everything works great.
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Old 03-30-2007, 12:54 AM
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congratz on the new engine was hoping you would find one soon.
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Old 03-30-2007, 02:25 PM
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if you want you can make that obd1 engine into an obd2. all you have to do is swap over the oil pump and distributor with the external coil from your 97 engine and you'll be fine. its best to make these changes before you put the new engine in the car.
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Old 03-30-2007, 02:45 PM
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isnt the obd1 better to get though???
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Old 03-30-2007, 05:13 PM
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obd 1 is more tuner friendly. obd 2 is a learning system. it will take what you have done to the engine and eventually adjust everything to take you back to stock settings. gay i know. so its best to go from obd 2 to obd 1. i found a link to a conversion harness while surfing a while back. http://www.kingmotorsports.com/category.aspx?cat=4
hope this helps bro
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Old 03-30-2007, 06:06 PM
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what I was suggesting will make the engine swap a hole lot easier. if he does not change the oil pump and the dist. he will have to run his own crank sensor wires and its not as simple as it sounds. these are the two things I and most of the h22 community will suggest doing.


then, if he wants to get a obd2a to obd1 conversion then that's fine. just make the engine itself obd2.
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Old 03-30-2007, 06:10 PM
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Originally Posted by Sener View Post
isnt the obd1 better to get though???

yes obd1 is better than obd2. but it's a hell of a lot easier engine swap if you change the oil pump and distributor and coil to obd2. he won't have to mess with the wiring harness at all. I did not say to use an obd2 ecu. just suggested things to make the swap go smoother on him.
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Old 03-31-2007, 02:32 AM
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If he doesn't change the oil pump and the distributor he will run into this problem:

Why my car won't start???? *Crank Sensor*
I need help ASAP!!!!!

I'm trying to stop him from going through this....
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Old 03-31-2007, 08:48 AM
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i'm glad i swapped oil pumps and didnt run some ghetto wiring harness.
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Old 03-31-2007, 09:01 AM
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i had the same issue when i did my swap. what the problem is ...
your crank position sensor and timing position sensor was at the crank pulley on your obd2 motor. your obd1 motor it has those sensors built into the distributor. if you notice on an obd1 distributor on of the plugs has 8 wires opposed to the 4 wires in an obd1. what i did... looked in the helms manual for wires colors... ran the four extra wire directly to the ecu. i have not had a single problem yet.. just be neat and wire loom and solder and tape.... you should be fine.
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Old 03-31-2007, 11:02 AM
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damn guys thanks alot yea im not trying to ghetto rig anything or have my car not crank or even turn on . im defintely trying to run a obd1 setup due to more ways of tunning it obd1 then obd2. prolly doing the swap this weekend hope so... keep you guys posted
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Old 12-20-2009, 12:34 AM
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Re: obd2 to obd1 help.

sorry to bring this thread back from the dead but i foun some useful info on here and i needed to ask for some advice.

the motor in my 97 prelude blew and i need to replace it. a jdm 92-95 h22a costs $800 while an h22a4 will run me $1200. obviously i'd like to go with the h22a but only thing is i need to convert it to obd2. i understand that all i need to do is change the oil pump and the distributor and everything will plug into my obd2 harness??? now before anyone bashes me for trying to convert to obd2 and lose the ability to tuner and all, here's my reasoning.

here in nj anything 96 and up gets plugged into the obd2 interface for emissions purposes, this is the main reason i want to stay obd2.

later on, i have a turbo kit i will be installing, so i plan on using the obd2 to obd1 harness and a p28 chip for tuning purposes. so the idea is when it comes time for inspection. i put in my stock ecu and disconnect the turbo to go thru emissions, then after it passes i put the p28 back and connect the turbo again.

for now, however, i'd like to ocnvert the jdm h22a to obd2 and run it with my stock h22a4 ECU.

aside from the distributor and oil pump swap, is there anything else i need to worry about? i read somewhere else that the intake is different as well?? i have been reading quite a bit on several threads but i am finding conflicting information. i am planning on going to get this jdm motor on monday and i need to know EXACTLY what i need to make all of this work. any advice would be helpful and greatly appreciated. thanks!

Alex
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Old 12-20-2009, 03:31 PM
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Re: obd2 to obd1 help.

im in the same boat dude but i want to go obd1 i have no clue what i need and my engine comes monday aswell XP
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Old 12-20-2009, 03:49 PM
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Re: obd2 to obd1 help.

you are trying to convert h22a4 to obd1? or h22a to obd2?
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Old 12-20-2009, 06:32 PM
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Re: obd2 to obd1 help.

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Originally Posted by aalvarez3 View Post
you are trying to convert h22a4 to obd1? or h22a to obd2?
h22a4 blew... ordered a h22a and i have both full engines what do i need to switch over from my h22a4 to the h22a to make it run if anything? and if i ordered the h22a ecu unit do i even need to do any of this ****? probably not right? i think i might still have them switch the auto tensioner from the accord engine or h23 or w/e =p
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Old 12-20-2009, 07:14 PM
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Re: obd2 to obd1 help.

http://bbmoto.net/wiki/index.php?HybridPrelude
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Old 12-20-2009, 07:20 PM
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Re: obd2 to obd1 help.

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dude is this 5hit spam or something it never works when i click it i always see nexium **** and imatrex wikipidea stuff? wth?
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Old 12-20-2009, 07:27 PM
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Re: obd2 to obd1 help.

damn i wish someone would have told me earlier. Somehow there are spam bots that can bypass my password and change the material. I'll fix it here in a minute
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Old 12-20-2009, 07:28 PM
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Re: obd2 to obd1 help.

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damn i wish someone would have told me earlier. Somehow there are spam bots that can bypass my password and change the material. I'll fix it here in a minute
yeah yo i noticed it like twice its cool though fin me the real link :D
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