I need a small bit of help. Recently purchased jdm Map 4age, ecu, and harness. Trying to put it in my US spec car and the 14 pin plugs are wired different. Want to know if anyone has done this and what you did to make it work. I'm not extremely confident with wiring and schematics and such

supercharged85gts wrote:I need a small bit of help. Recently purchased jdm Map 4age, ecu, and harness. Trying to put it in my US spec car and the 14 pin plugs are wired different. Want to know if anyone has done this and what you did to make it work. I'm not extremely confident with wiring and schematics and such

I can't help you with your question but can I ask why you are doing this?
Usually when someone tries this it's because they think that they are going to unlock mad JDM HP then they do the swap to find they wasted a lot of time and money for nothing.

http://lmgtfy.com/?q=ae86+jdm+map+conversion

Literally the first search item.

I'm the one who did that write up (I was bluekouki86). Its not terribly difficult, but isn't going to unlock some magical power. I did it so I could run an Apexi SAFCII to tweak the fuel after certain modifications. The stock AFM runs between 0-9v DC and the MAP sensor uses 0-5V DC which is compatible with almost all aftermarket tuners.

Its been a long time since I've been here, I don't really recognize many names.

Hey Ronny, hope you see this. I got your PM but I can't respond because I'm a noob (ha!).

Good to see you around still. I'll see if I can get a couple more posts and respond.

wak, they wont let you PM>

but ya, hit me back up when you can..

im doing the swap again, but some things i kinda forgot, maybe you can revisit and find your old thread.

thanks!

Ron

That is the reason why JDM AE86 is rated at 127 hp and the usdm is 112..... Map vs AFM.... +other emissions parts.

saiGone wrote:That is the reason why JDM AE86 is rated at 127 hp and the usdm is 112..... Map vs AFM.... +other emissions parts.

That is a common misconception. The motors had different ratings, likely due to different markets, different rules, different systems or who knows. The Japanese cars were not any more powerful or any faster and if you put a MAP and AFM motor on a dyno next to each other they would dyno nearly identical.

Hard to believe that a map car wouldn't be less air restrictive than one would with an AFM.

Another unfounded misconception. The AFM is not a notable restriction.
ATS tested this on a 3SGTE making something like 350 WHP and made something like 3 more HP without the AFM in the intake. Granted a turbo changes things a little but it's still pretty safe to say that if you are not making more power than the stock ECU can handle the AFM is no worthwhile restriction.

As I said in my previous post (and write-up on the old-old forum) there is no noticeable power difference between the AFM and MAP setups. The SOLE reason I did the swap was to get the 0-5 volt MAP sensor that was compatible with the SAFC-II I was wanting to use. It served its purpose, but all in all I would recommend going Megasquirt hands down over a MAP swap. It is cheaper, just as easy, and infinitely more useful. I ditched the OEM MAP setup long ago, and now have a ITB'ed ae101/big port hybrid and COP ignition. The $450 I spent on the DIYPNP system was well worth every penny.