I live in France , my fd has an european ecu(240 Hp/year 93), since i wan't 255 hp, I've bought japanese ecu (year 95).

But now when the fan run(high speed), idle jump 1200 to 2000-2500, When fan stop, idle come back 750-840 .

This idle fluctuationn is normal in japanese Rx7?


i' ve tried to adjust air bleed screw, but nothing happen.

Problem with water temp sensor? mines is Year 93, need I water temp sensor year 95 to resolve idle hunting.

Thanks for Help

 

sounds like a trottle position sensor issue... Buy a PFC if you have the means or put your old ecu back in you are playing with fire and gasoline. The ecu you have could be modified. I doubt you will see a difference between the two. -Jesse

 

So, this fluctuation isn't normal

pfc is expensive

no other issue to solve my problem?

Can i adjust something or replace any parts ?

I haven't idle problem with stock ecu,

Thanks for your help

 

PUT YOUR STOCK ECU BACK IN THEN.

A Japanese ecu is NOT going to give you ANY more power, ZERO. You are a long ways away from that man.

PUT YOUR STOCK ECU BACK IN.

You are going to blow your engine if you have a tuned ecu in your stock car.

PS: if puting your stock ecu in does not help, reread my first sentance on the last post.

 

Hi I had the same problem with my European FD.
I Had a japan ECU, and When the fan comes on, the idle go between 2000-3000rpm.
Now I use an USA ECU, and the engine runs fine