I don't want to sound like an idiot,but what do u mean by the pair system?
The PAIR system has to do with the airflow delivery to the intake manifold and was set up on the Type I's to help emissions, kind of like an EGR valve. There is a hose that comes out from the firewall the connects to the back of the Type I manifold. When I got my swap done back in 2006, the shop reused my Type I manifold (without my permission) so they would have a place to reconnect the hose. The Type II manifold has better flow characteristics than the Type I so I wouldn't suggest doing this. All you have to do is plug the hose that connected to the back of the old manifold, and you can use the Type II one with no problems. Hope this helps.
91 Legend LS Coupe with JDM Type II Engine Blacked out on 18's
“1. Removing the PAIR system. The Type 1 uses an air injection setup that the Type 2 doesn't use. On the Type 1 there is a pipe from the PAIR valve to the driver's side exhaust manifold. As long as your Type 2 comes with the exhaust. manifolds you will eliminate this pipe easily. If you had to reuse your Type 1 exhaust. manifolds for some reason then you would need to block off the hole for the pair pipe. You also need to cap off the vacuum line that controls the PAIR valve since it is no longer used.
In addition, you will need to swap over your existing USDM engine wiring harness, the main connectors on the JDM harness are on the wrong side for our purposes. Also you will want to swap over your passenger side valve cover. The USDM valve cover has a temperature sensor on the back that the JDM motor lacks. Simply swap the valve covers and the problem is solved.
2. Yes. The issue has to do with the layout of their cars, being right hand drive. The ecu and wiring is on the opposite side, regardless of Type 1 or 2. Swapping the harness and valve cover takes care of it so it's not really a big deal.
Courtesy of Soulman
9. Plug off the #7 hose that used to plug into the Pair valve. for diagrams go to DV8's website. Also, swap the passenger side valve cover.
Courtesy of LS92Sedan
Make sure if you need to order parts for you motor that u order them for a 94-95 GS sedan or 93-95 coupe. If your mechanic gives you some b.s. about not being able to use the Type II manifold, slap him, seriously, and slap him hard, you do not need to remove ANYTHING in order for the swap to work other than the pass valve cover and completely remove the Type I pair system, also, have him use the Type I crank pulley, it is lighter than the Type II. Dont let him b.s you about emissions, my JDM Type II with US Type I ecu passed sniffer here in WI and I can scan a copy of my test if he needs confirmation. Hope this helps, if you have anymore questions feel free to ask.
Car 1: 91 Alpha/Alpha Touring KA7
Car 2: 92 Alpha/ AlphaT KA8
Car 3: 91L,93LS,94LS KA7's
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Originally Posted by lorlieandcarlos
Thanks alot for the replies.I feel like family now
See we are family here and I love it with out all the kiddy stuff. Everyone was a new member at one point of time but some forgot but I'm keeping it that way.
Yes im back! Alpha/AlphaTouring!http://www.acura-legend.com/vbulleti...ang%2Fjdm-kang
Originally Posted by Blackend
Good to meet you too Willie. I tell ya, when we were walking the Auto-X course and you guys started pulling in, I had no idea who it was until I saw the green machine and we're all like "ooohhhh, that's Willie and the Acuraholicks!"
Glad you guys made it out, and nice meeting all of you.
Alright guys, It's been a while since anyone has posted on this topic. But, does anyone know a good source for the TypeII ECU? Never have understood why they don't include the ECU with the motor. Also, I'm assuming my 5spd tranny will bolt right up?
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