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OBD1 H22A into my 97 Lude with OBD2 H22A4

 
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Old 08-04-2012, 10:35 PM
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OBD1 H22A into my 97 Lude with OBD2 H22A4

Hey everyone,

I'm new to this forum, I posted something similiar on JDMRides which is where I reside but they don't offer a lot of info or help with the Preludes, I have a 95 Civic Si GSR Turbo aside from this, which is why I am on JDMR. But my other car is a 1997 Honda Prelude with the H22A4, Recently I bought a really nice H22A that came out of my friends 1990 Accord that he H swapped. Now on my Civic, B, D swaps are easy as pie, as I thought this would be but I'm getting a lot of feedback saying it's not that simple with these cars. I would like to keep it OBD2, although I have the OBD1 ECU with this motor but I don't want to have to wire in a resistor box, etc and I only have the OBD2 harness which is on my A4 still running every day. Can anyone give me information on both keeping the car OBD2 and also what would be needed to go OBD1 if necessary, and also if a jumper harness is used, the car is unreadable to OBD2 scan tools for CEL so how would I read an Engine Light? thanks, I hope this isnt overbearing but I am very confused and have a lot of questions before I even attempt this, and it's also my first Prelude and I LOVE it.
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Old 08-07-2012, 03:58 AM
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Re: OBD1 H22A into my 97 Lude with OBD2 H22A4

Bump.......Im disappointed no one has responded
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Old 08-07-2012, 04:04 AM
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Re: OBD1 H22A into my 97 Lude with OBD2 H22A4

keeping it obd 2 means you needs to take the oil pump off of your car and swap it over with the tdc and cps wires....or rewire your the accord dist. to pick up the cps assuming it is vtec.

to my knowledge that's all you need to do.

if you use a jumper from rywire you just wire the 2 wires that come off the harness to a switch and when you activate the switch it flashes the cel. just keep it obd2
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