Im trying to install a N340 ECU Japan spec (according to seller) on a 13BT with N/A computer, does anyone have more information on the N340?
Does it have same plugs?
Are the plug from N/A same as T?

Thanks for all your help.

I Live in Costa Rica, and this engine is unknow by all. I have to order everything from the US and do everything myself.

Any information will be appreciated.

 

that should work out for you, what year is it?

 

car is rx7 87 N/a engine is 87 13bt, thanks

 

But i dont seem to find much info about that ECU besides that there are 2 models of the ECU one that cuts at 7500 RPM and one that doesnt, at some point I read something about em being a kouki ECU, but not sure.

 

it looks like the n340 will have different connectors unless you have the j-spec harness as well. try using search, that should help out a little.

 

The connectors are the same but the n340 is for the t2 model.
Thanks Robert

 

I think he is swapping a Turbo II engine into an 87 N/A (unless I read it wrong).

 

yeap, it was N/A, now is turbo. It still has the N/A ECU, thats why im looking in to turbo ECUs, and I dont seem to find out of all ECUs which one is better. What do you guys recommend, or think about N340?

 

do you guys know where to find new maf sensor (airflow sensor) at a good price, last time i checked mazdatrix it was about 900 USDs.

 

the car runs ok, but im trying to get it up to spec. Besides MAF and ECU is there something else I need to add/check external to the engine for that swap?. fuel pump its on its way Walbro 255.

 

Contact japan2la. You can use the n340 if you are using a t2 harness. That just the j-spec ecu. The a-spec is n332. One is not better than the other.
Thanks Robert

 

here is what happened.



https://www.rx7club.com/showthread.p...highlight=N340

 

Here is what you need to get :

s4 T2 pressure sensor
s4 T2 AFM
s4 T2 ECU (N332 or N333, they are the same really)
Fuel cut defender

make sure you have all those and see if that fixes the problem. I actually sold all 4 of those parts to someone who had done a T2 swap for $200 shipped.